CN103903663A - Method for manufacturing large vessel, especially steel containment vessel in nuclear power plant - Google Patents
Method for manufacturing large vessel, especially steel containment vessel in nuclear power plant Download PDFInfo
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- CN103903663A CN103903663A CN201210585206.6A CN201210585206A CN103903663A CN 103903663 A CN103903663 A CN 103903663A CN 201210585206 A CN201210585206 A CN 201210585206A CN 103903663 A CN103903663 A CN 103903663A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention relates to a method for manufacturing a steel containment vessel in a nuclear power plant. The method comprises the following steps: modular design, namely designing the containment vessel as a bottom seal head module, a cylinder ring module and a top seal head module; manufacturing of a smallest composition unit, namely manufacturing the smallest composition unit for the bottom seal head module, the cylinder ring module and the top seal head module in a manufacturing plant; manufacturing of the modules, namely assembling the bottom seal head module, the cylinder ring module and the top seal head module in the manufacturing plant; transporting of the modules, namely transporting the assembled bottom seal head module, the assembled cylinder ring module and the assembled top seal head module to a construction site of the nuclear power plant wholly by using a semisubmersible barge; and mounting of the modules, namely hoisting the bottom seal head module, the cylinder ring module and the top seal head module which are transported to the construction site of the nuclear power plant to a nuclear island to mount in places, and welding circumferential welding seams among the bottom seal head module, the cylinder ring module and the top seal head module.
Description
Technical field
The present invention relates to the manufacture of tun, relate in particular to the manufacture method of the tun in the places such as nuclear power, chemical industry, oil storage or smelting.
Background technology
In large reactor nuclear power station, conventionally can use steel containment vessel.Fig. 1 shows a kind of illustrative examples of this large-scale steel containment vessel.This steel containment vessel is generally formed by the docking of multiple Knockdown blocks, and these Knockdown blocks comprise intermediate cylindrical cylindrical shell and be positioned at cover head 1 and the bottom (head) 5 at cylindrical shell two ends, and intermediate cylindrical cylindrical shell can be divided into again multiple cylindrical drum 2,3,4.The about 3500t of overall weight of steel containment vessel.Wherein, upper and lower two end sockets and multiple cylindrical shell ring completion interior diameter is 40m, be highly 11.5m to 15.5m not etc., single-piece weight be 660t to 800t not etc.
In the construction of steel containment vessel, general employing in manufacturing works shapes the minimum composition unit (part) of containment, then single-piece is transported to nuclear power station working-yard, assemble place temporarily and complete respectively the assembling of bottom (head), cover head and cylindrical shell ring body and part annex at the steel containment vessel of nuclear power station working-yard, then successively bottom (head), cylindrical shell ring and cover head are lifted on after nuclear island installation in place, finally complete the assembly welding of other annexes at nuclear island, to complete the construction of a complete steel containment vessel.
Adopt above-mentioned mode of construction, there is following shortcoming:
1) need to build a large-scale steel containment vessel in each nuclear power station working-yard and assemble place temporarily, and supporting relevant containment assembling workshop and corresponding equipment, work facility, cause each nuclear power station working-yard overlapping investment steel containment vessel to assemble place construction and supporting equipment work facility are purchased temporarily.
2) steel containment vessel that nuclear power station working-yard is all built is assembled place temporarily and is taken up an area approximately 65 mu, account for the ratio of the total land area in nuclear power station construction production area up to 5%, seriously tie up the land used space of nuclear power station construction production area, cause nuclear power station construction production area land used anxiety.
3) assembling of the manufacture of the factory of steel containment vessel component part and nuclear power station working-yard separately, has restricted the seamless connection between the manufacture of steel containment vessel part and overall package, restricts the raising of the construction progress of whole steel containment vessel.
4) assemble the difference of relevant place, place and work collocation of the machinery group and manufacturing works due to nuclear power station working-yard steel containment vessel temporarily, limit effective enforcement of part factory manufacturing process, increase the labour intensity of nuclear power station working-yard steel containment vessel assembling, the lifting of restriction steel containment vessel integral constructing quality.
5) in nuclear island of nuclear power station, carry out assembling and the welding job of steel containment vessel annex, cause crossed construction operation and high-altitude construction operation to increase, increase and build handling cost and managing risk.
Summary of the invention
For overcoming at least one aspect of shortcoming of the prior art, the present invention is proposed.
According to an aspect of the present invention, propose a kind of manufacture method of tun, comprising:
Modular design step: described tun is designed to bottom (head) module, cylindrical shell ring module and cover head module;
Minimum component units manufacturing step: manufacture the minimum component units for bottom (head) module, cylindrical shell ring module and cover head module in manufacturing works;
Module manufacturing step: in manufacturing works' assembling bottom (head) module, assembling cylindrical shell ring module and assembling cover head module;
Module transportation step: by the bottom (head) module assembling, the cylindrical shell ring module assembling and the cover head module assembling be the installation scene to tun with half latent barging; And
Module installation step: the bottom (head) module, cylindrical shell ring module and the cover head module hoisting that are transported to installation scene are put in place, and weld the girth joint between bottom (head) module, cylindrical shell ring module and cover head module.
Favourable, described module manufacturing step also can comprise that the module to manufacturing carries out whole detection and/or surface treatment.
Favourable, in module manufacturing step, bottom (head) module, cylindrical shell ring module and cover head module are carried out assembly welding in assembly welding frock separately.
Favourable, described module transportation step comprises: utilize lifting hydraulic car voluntarily that bottom (head) module, cylindrical shell ring module and cover head module are loaded onto ship; Bottom (head) module, cylindrical shell ring module and the water transport of cover head module are transported to the harbour at installation scene; Utilize lifting hydraulic car voluntarily that bottom (head) module, cylindrical shell ring module and cover head module are unloaded a ship; And bottom (head) module, cylindrical shell ring module and cover head module are transported to installation scene.Further, in module manufacturing step, bottom (head) module, cylindrical shell ring module and cover head module are carried out assembly welding in assembly welding frock separately; And in module transportation step, described bottom (head) module, cylindrical shell ring module and cover head module are transported with together with assembly welding frock separately.
Favourable, in module manufacturing step, bottom (head) module, cylindrical shell ring module and cover head module parallel composition.
Favourable, described module manufacturing step also comprises the enclosure group of module is installed in module.
Favourable, described cylindrical shell ring module comprises the first cylindrical shell ring, the second cylindrical shell ring and the 3rd cylindrical shell ring, and the first cylindrical shell ring and bottom (head) module are joined, and the 3rd cylindrical shell ring and cover head module are joined, and the second cylindrical shell ring joins with the first cylindrical shell ring and the 3rd cylindrical shell ring.
Optionally, described tun is the steel containment vessel using in nuclear power station, and described installation scene is nuclear power station working-yard, in described module installation step, by place to nuclear island to the bottom (head) module, cylindrical shell ring module and the cover head module hoisting that are transported to installation scene.Favourable, after module installation step, the linkage interface between other system or equipment and containment is installed.Further, described method also comprises step: carry out the bulk testing of containment.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the module partition method of steel containment vessel of nuclear power station according to an embodiment of the invention;
Fig. 2 is the view of cover head module according to an embodiment of the invention, and wherein upper figure is side view, and figure below is vertical view;
Fig. 3 is the view of the second cylindrical shell ring according to an embodiment of the invention, and wherein upper figure is side view, and figure below is vertical view;
Fig. 4 is the view of the 3rd cylindrical shell ring according to an embodiment of the invention, and wherein upper figure is side view, and figure below is vertical view;
Fig. 5 is the side view of the first cylindrical shell ring according to an embodiment of the invention;
Fig. 6 is the side view of bottom (head) module according to an embodiment of the invention; And
Fig. 7 is the manufacturing step that the steel containment vessel of nuclear power station of one embodiment of the present of invention is shown.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.In instructions, same or analogous drawing reference numeral is indicated same or analogous parts.Followingly with reference to accompanying drawing, the explanation of embodiment of the present invention is intended to present general inventive concept of the present invention to make an explanation, and does not should be understood to a kind of restriction of the present invention.
The manufacture method of tun is described with reference to Fig. 1,7 as an example of steel containment vessel of nuclear power station example below.This manufacture method comprises:
Modular design step: be bottom (head) module 5, cylindrical shell ring module 2,3,4 and cover head module 1 by containment design;
Minimum component units manufacturing step: manufacture the minimum component units for bottom (head) module 5, cylindrical shell ring module 2,3,4 and cover head module 1 in manufacturing works;
Module manufacturing step: in manufacturing works' assembling bottom (head) module 5, assembling cylindrical shell ring module 2,3,4 and assembling cover head module 1;
Module transportation step: by the bottom (head) module 5 assembling, the cylindrical shell ring module 2,3,4 assembling and cover head module 1 use assembling half is dived barging to nuclear power station working-yard; And
Module installation step: the bottom (head) module 5, cylindrical shell ring module 2,3,4 and the cover head module 1 that are transported to nuclear power station working-yard are lifted into nuclear island in place, and weld the girth joint between bottom (head) module 5, cylindrical shell ring module 2,3,4 and cover head module 1.
Favourable, described module manufacturing step also comprises that the module to manufacturing carries out whole detection and/or surface treatment.
In module manufacturing step, bottom (head) module 5, cylindrical shell ring module 2,3,4 and cover head module 1 are carried out assembly welding in assembly welding frock separately.
Favourable, described module transportation step comprises: utilize lifting hydraulic car voluntarily that bottom (head) module 5, cylindrical shell ring module 2,3,4 and cover head module 1 are loaded onto ship; Bottom (head) module 5, cylindrical shell ring module 2,3,4 and 1 water transport of cover head module are transported to the harbour of nuclear power station working-yard; Utilize lifting hydraulic car voluntarily that bottom (head) module 5, cylindrical shell ring module 2,3,4 and cover head module 1 are unloaded a ship; And bottom (head) module 5, cylindrical shell ring module 2,3,4 and cover head module 1 are transported to nuclear power station working-yard.Favourable, in module manufacturing step, bottom (head) module 5, cylindrical shell ring module 2,3,4 and cover head module 1 are carried out assembly welding in assembly welding frock separately; And in module transportation step, described bottom (head) module 5, cylindrical shell ring module 2,3,4 and cover head module 1 are transported with together with assembly welding frock separately.
In module manufacturing step, bottom (head) module 5, cylindrical shell ring module 2,3,4 and cover head module 1 can parallel compositions.
Optionally, described module manufacturing step also comprises the enclosure group of module is installed in module.
Optionally, in described modular design step, described cylindrical shell ring module is divided into cylindrical shell ring in the middle of n, and wherein, n is 1 the minimum positive integer of being greater than that meets following condition, n × Q >=W, and Q is the maximum weight that scene can single lifting, and the weight that W is cylindrical shell.In specific embodiments of the invention, n is 3, and still, as required, n can be also other natural number.For example, if whole cylindrical shell has 10 middle cylindrical shell rings, its general assembly (TW) is 2000 tons, and crane maximum lifting lifting capacity under the extreme operating condition of cylindrical shell ring module is 800t, by sunykatuib analysis, under this operating mode, the Current Collector Sleave weight of lifting use is 100t, when cylindrical shell ring Module Division can be that 700t divides according to maximum weight, now, said n be 3.
Optionally, described cylindrical shell ring module comprises the first cylindrical shell ring, the second cylindrical shell ring and the 3rd cylindrical shell ring, and the first cylindrical shell ring and bottom (head) module are joined, and the 3rd cylindrical shell ring and cover head module are joined, and the second cylindrical shell ring joins with the first cylindrical shell ring and the 3rd cylindrical shell ring.
Optionally, described tun is the steel containment vessel using in nuclear power station, and described installation scene is nuclear power station working-yard, in described module installation step, by place to nuclear island to the bottom (head) module, cylindrical shell ring module and the cover head module hoisting that are transported to installation scene.Further, described method also comprises step: after module installation step, the linkage interface between other system or equipment and containment is installed.Further, described method also comprises step: carry out the bulk testing of containment.
Fig. 7 exemplarily shows the step of manufacturing containment.
Below above step is described with concrete example.
As shown in fig. 1, steel containment vessel of nuclear power station is the large cylinder container of a whole nuclear island of nuclear power station of envelope, is made up of cover head 1, the 3rd cylindrical shell ring 2, the second cylindrical shell ring 3, the first cylindrical shell ring 4 and bottom (head) 5.
As shown in Figure 2, for example, a complete cover head module 1 comprises that cover head body 11, cofferdam 12, multiple U-shaped bracing frame 13, multiple attached plate 14 form, and wherein cover head body 11 is formed by polylith end socket limb assembly welding, and cofferdam 12 is made up of multiple steel member units.
As shown in Figure 3, for example, a 3rd complete cylindrical shell ring 2 comprises that the 3rd cylindrical shell ring body 21, multiple U-shaped bracing frame 22, multiple attached plate 23, ring hanging beam support 24 compositions.Wherein the 3rd cylindrical shell ring body 21 is formed by polylith cylinder board assembly welding, and ring hanging beam supports 24 and is made up of multiple steel member units.
As shown in Figure 4, for example, a second complete cylindrical shell ring 3 comprises that the second cylindrical shell ring body 31, multiple U-shaped bracing frame 32, multiple attached plate 33, inner ring stiffener 34 form.Wherein the second cylindrical shell ring body 31 is formed by polylith cylinder board assembly welding, and inner ring stiffener 34 is made up of multiple steel member units.
As shown in Figure 5, for example, a first complete cylindrical shell ring 4 comprises that the first cylindrical shell ring body 41, multiple penetration piece insertion plate 42, multiple penetration piece sleeve 43, multiple penetration piece 44, multiple U-shaped bracing frame 45, external reinforcing ring 46, multiple attached plate 47 form.Wherein the first cylindrical shell ring body 41 is formed by polylith cylinder board assembly welding, and external reinforcing ring 46 is made up of multiple steel member units.
As shown in Figure 6, for example, a complete bottom (head) module comprises that bottom (head) body 51, multiple penetration piece insertion plate 52, multiple penetration piece sleeve 53, multiple WELDING STUDS 54, multiple temporary support columns 55, multiple attached plate 56 form.Wherein bottom (head) body 51 is formed by polylith end socket limb assembly welding, and temporary support columns 55 is made up of multiple steel member units.
As exemplary embodiment, the manufacture method of bottom (head) module 5 comprises the steps:
1) according to the requirement of design drawing and designing technique condition, complete each processing that forms parts unit in bottom (head) module in manufacturing works, comprise the composition monolithic limb of bottom (head) body 51, component units and the attached plate 56 that penetration piece inserts plate 52, penetration piece sleeve 53, WELDING STUDS 54, temporary support columns 55.
2) in manufacturing works, process qualified each parts unit that forms by the 1st step, assembly welding becomes a complete bottom (head) module, and the bottom (head) module that assembly welding is good comprises that bottom (head) body 51, penetration piece that design atlas requires insert plate 52, penetration piece sleeve 53, WELDING STUDS 54, temporary support columns 55 and attached plate 56.Bottom (head) module is carried out assembly welding in assembly welding frock.
3) the good bottom (head) module of integral assembly welding is carried out to whole detection according to the requirement of design atlas, then, according to the requirement of design atlas, entirety is carried out surface treatment.
4) with self-lifting hydraulic car, bottom (head) module good integral assembly welding and assembly welding frock whole Transporting thereof are dived on barge to half, the shipment of bottom (head) module is carried out self-propelled shipment by the dive cooperation of barge of self-lifting hydraulic car and half.
5), by water transport, complete bottom (head) module is transported directly to the harbour of nuclear power station working-yard.
6) with self-lifting hydraulic car, bottom (head) module good integral assembly welding and assembly welding frock thereof are dived barge to whole Transporting to harbour bed road from half, unloading a ship of bottom (head) module carried out self-propelled and unloaded a ship by the dive cooperation of barge of self-lifting hydraulic car and half.
7) with self-lifting hydraulic car, bottom (head) module good integral assembly welding and assembly welding frock thereof are dived barge to whole Transporting to interim stacking field or the lifting point of nuclear power station working-yard from half.
8) with large-scale crane by integral bottom end socket module hoisted in position.
As exemplary embodiment, the manufacture method of the first cylindrical shell ring 4 comprises the steps:
1) according to the requirement of design drawing and designing technique condition, complete each processing that forms parts unit on the first cylindrical shell ring in manufacturing works, comprise that the first cylindrical shell ring body 41 forms component units and the attached plate 47 of cylinder board, penetration piece insertion plate 42, penetration piece sleeve 43, penetration piece 44, U-shaped bracing frame 45, external reinforcing ring 46.
2) in manufacturing works, process qualified each parts unit that forms by the 1st step, assembly welding becomes a first complete cylindrical shell ring, and the first cylindrical shell ring that assembly welding is good comprises the first cylindrical shell ring body 41 that designs atlas and require, component units and the attached plate 47 that penetration piece inserts plate 42, penetration piece sleeve 43, penetration piece 44, U-shaped bracing frame 45, external reinforcing ring 46.The first cylindrical shell ring carries out assembly welding in assembly welding frock.
3) the first good cylindrical shell ring of integral assembly welding is carried out to whole detection according to the requirement of design atlas, then, according to the requirement of design atlas, entirety is carried out surface treatment.
4) with self-lifting hydraulic car, the first good integral assembly welding cylindrical shell ring and assembly welding frock whole Transporting thereof are dived on barge to half, the shipment of the first cylindrical shell ring is carried out self-propelled shipment by the dive cooperation of barge of self-lifting hydraulic car and half.
5), by water transport, the first complete cylindrical shell ring is transported directly to the harbour of nuclear power station working-yard.
6) with self-lifting hydraulic car, the first good integral assembly welding cylindrical shell ring and assembly welding frock thereof are dived barge to whole Transporting to harbour bed road from half, unloading a ship of the first cylindrical shell ring carried out self-propelled and unloaded a ship by the dive cooperation of barge of self-lifting hydraulic car and half.
7) with self-lifting hydraulic car, the first good integral assembly welding cylindrical shell ring and assembly welding frock thereof are dived barge to whole Transporting to interim stacking field or the lifting point of nuclear power station working-yard from half.
8) with large-scale crane by overall the first cylindrical shell ring hoisted in position, the girth joint between welding the first cylindrical shell ring and bottom (head) module.
As exemplary embodiment, the manufacture method of the second cylindrical shell ring 3 comprises the steps:
1) according to the requirement of design drawing and designing technique condition, complete each processing that forms parts unit on the second cylindrical shell ring in manufacturing works, comprise that the second cylindrical shell ring body 31 forms the component units of cylinder board, U-shaped bracing frame 32, attached plate 33, inner ring stiffener 34.
2) in manufacturing works, process qualified each parts unit that forms by the 1st step, assembly welding becomes a second complete cylindrical shell ring, and the second cylindrical shell ring that assembly welding is good comprises the second cylindrical shell ring body 31, U-shaped bracing frame 32, attached plate 33, the inner ring stiffener 34 that design atlas requires.The second cylindrical shell ring carries out assembly welding in assembly welding frock.
3) the second good cylindrical shell ring of integral assembly welding is carried out to whole detection according to the requirement of design atlas, then, according to the requirement of design atlas, entirety is carried out surface treatment.
4) with self-lifting hydraulic car, the second good integral assembly welding cylindrical shell ring and assembly welding frock whole Transporting thereof are dived on barge to half, the shipment of the second cylindrical shell ring is carried out self-propelled shipment by the dive cooperation of barge of self-lifting hydraulic car and half.
5), by water transport, the second complete cylindrical shell ring is transported directly to the harbour of nuclear power station working-yard.
6) with self-lifting hydraulic car, the second good integral assembly welding cylindrical shell ring and assembly welding frock thereof are dived barge to whole Transporting to harbour bed road from half, unloading a ship of the second cylindrical shell ring carried out self-propelled and unloaded a ship by the dive cooperation of barge of self-lifting hydraulic car and half.
7) with self-lifting hydraulic car, the second good integral assembly welding cylindrical shell ring and assembly welding frock thereof are dived barge to whole Transporting to interim stacking field or the lifting point of nuclear power station working-yard from half.
8) with large-scale crane by overall the second cylindrical shell ring hoisted in position, the girth joint between welding the second cylindrical shell ring and the first cylindrical shell ring.
As exemplary embodiment, the manufacture method of the 3rd cylindrical shell ring 2 comprises the steps:
1) according to the requirement of design drawing and designing technique condition, complete each processing that forms parts unit on the 3rd cylindrical shell ring in manufacturing works, comprise that the 3rd cylindrical shell ring body 21 forms the component units of cylinder board, U-shaped bracing frame 22, attached plate 23, ring hanging beam support 24.
2) in manufacturing works, process qualified each parts unit that forms by the 1st step, assembly welding becomes a 3rd complete cylindrical shell ring, and the 3rd cylindrical shell ring that assembly welding is good comprises that the 3rd cylindrical shell ring body 21, U-shaped bracing frame 22, attached plate 23, ring hanging beam that design atlas requires support 24.The 3rd cylindrical shell ring carries out assembly welding in assembly welding frock.
3) the 3rd good cylindrical shell ring of integral assembly welding is carried out to whole detection according to the requirement of design atlas, then, according to the requirement of design atlas, entirety is carried out surface treatment.
4) with self-lifting hydraulic car, the 3rd good integral assembly welding cylindrical shell ring and assembly welding frock whole Transporting thereof are dived on barge to half, the shipment of the 3rd cylindrical shell ring is carried out self-propelled shipment by the dive cooperation of barge of self-lifting hydraulic car and half.
5), by water transport, the 3rd complete cylindrical shell ring is transported directly to the harbour of nuclear power station working-yard.
6) with self-lifting hydraulic car, the 3rd good integral assembly welding cylindrical shell ring and assembly welding frock thereof are dived barge to whole Transporting to harbour bed road from half, unloading a ship of the 3rd cylindrical shell ring carried out self-propelled and unloaded a ship by the dive cooperation of barge of self-lifting hydraulic car and half.
7) with self-lifting hydraulic car, the 3rd good integral assembly welding cylindrical shell ring and assembly welding frock thereof are dived barge to whole Transporting to interim stacking field or the lifting point of nuclear power station working-yard from half.
8) with large-scale crane by entirety the 3rd cylindrical shell ring hoisted in position, the girth joint between welding the 3rd cylindrical shell ring and the second cylindrical shell ring.
As exemplary embodiment, the manufacture method of cover head module 1 comprises the steps:
1) according to the requirement of design drawing and designing technique condition, complete each processing that forms parts unit in cover head module in manufacturing works, comprise composition monolithic limb, cofferdam 12 component units of cover head body 11; U-shaped bracing frame 13 and attached plate 14.
2) in manufacturing works, process qualified each parts unit that forms by the 1st step, assembly welding becomes a complete cover head module, and the cover head module that assembly welding is good comprises composition monolithic limb, cofferdam 12 component units of the cover head body 11 that requires of design atlas; U-shaped bracing frame 13 and attached plate 14.Cover head module is carried out assembly welding in assembly welding frock.
3) the good cover head module of integral assembly welding is carried out to whole detection according to the requirement of design atlas, then, according to the requirement of design atlas, entirety is carried out surface treatment.
4) with self-lifting hydraulic car, cover head module good integral assembly welding and assembly welding frock whole Transporting thereof are dived on barge to half, the shipment of cover head module is carried out self-propelled shipment by the dive cooperation of barge of self-lifting hydraulic car and half.
5), by water transport, complete cover head module is transported directly to the harbour of nuclear power station working-yard.
6) with self-lifting hydraulic car, cover head module good integral assembly welding and assembly welding frock thereof are dived barge to whole Transporting to harbour bed road from half, unloading a ship of cover head module carried out self-propelled and unloaded a ship by the dive cooperation of barge of self-lifting hydraulic car and half.
7) with self-lifting hydraulic car, cover head module good integral assembly welding and assembly welding frock thereof are dived barge to whole Transporting to interim stacking field or the lifting point of nuclear power station working-yard from half.
8) with large-scale crane by place overall cover head module hoisting, the girth joint between welding cover head module and the 3rd cylindrical shell ring.
After assembling bottom (head) module, the first to the 3rd cylindrical shell ring and cover head module, can assemble other system and equipment in nuclear power station and coordinate interface with being connected of steel containment vessel, then carry out the overall structure test of steel containment vessel.
According to the size dimension of cargo ship, can disposablely transport the steel containment vessel module of two completed assembled, for example bottom (head) 5 and the first cylindrical shell ring 4 simultaneously.If the steel containment vessel module of completed assembled is transported to the interim storage space in nuclear power station working-yard and deposits,, before final hoisted in position, application solf-propelled hydraulic lift truck is once had bad luck.
The ingredient of complete bottom (head) module 5, the first cylindrical shell ring 4, the second cylindrical shell ring 3, the 3rd cylindrical shell ring 2 and the cover head module 1 of describing in the present invention is only for exemplary description the present invention, and bottom (head) module 5, the first cylindrical shell ring 4, the second cylindrical shell ring 3, the 3rd cylindrical shell ring 2 and cover head module 1 also can exist other ingredient.
It should be noted that, although favourable, bottom (head) module 5, the first cylindrical shell ring 4, the second cylindrical shell ring 3, the 3rd cylindrical shell ring 2 and cover head module 1 can parallel compositions, but, when bottom (head) module 5, the first cylindrical shell ring 4, the second cylindrical shell ring 3, the 3rd cylindrical shell ring 2 and cover head module 1 must be carried out during at nuclear island hoisted in position in this order.
Utilize technical scheme of the present invention, because the assembly welding of containment bottom (head), cylindrical shell ring and cover head body all carries out in manufacturing works, at least can obtain one of following technological merit:
1) adopt this programme to carry out the construction of steel containment vessel, the assembly welding of containment bottom (head), cylindrical shell ring and cover head all carries out in manufacturing works, exempt the requirement of temporarily assembling place at nuclear power station working-yard construction large-sized steel containment, the land used that has alleviated nuclear power station construction production area requires about 65m2, has effectively alleviated nuclear power station construction production area ground pressure.
2) adopt this programme to carry out the construction of steel containment vessel, the assembly welding of containment bottom (head), cylindrical shell ring and cover head all carries out in manufacturing works, building that a factory complete steel containment vessel assembles that place is built temporarily and supporting containment assembling workshop, equipment, work collocation of the machinery group accordingly, can repeat to apply to the construction of multiple steel containment vessel of nuclear power station, improve that steel containment vessel assembles that place is built and supporting containment assembling workshop, the utilization factor of equipment, work facility accordingly temporarily.
3) adopt this programme to carry out the construction of steel containment vessel, the assembly welding of containment bottom (head), cylindrical shell ring and cover head all carries out in manufacturing works, exempt at nuclear power station working-yard construction large-sized steel containment and assemble place temporarily, with supporting containment assembling workshop, equipment, work facility, alleviate duplicate construction and the fund input of each nuclear power station working-yard.
4) adopt this programme to carry out the construction of steel containment vessel, the assembly welding of containment bottom (head), cylindrical shell ring and cover head all carries out in manufacturing works, can realize the seamless connection of bottom (head), cylindrical shell ring and the manufacture of cover head parts machining and overall package, reduce management link, be conducive to improve the construction progress of whole steel containment vessel.
5) adopt this programme to carry out the construction of steel containment vessel, the assembly welding of containment bottom (head), cylindrical shell ring and cover head all carries out in manufacturing works, compare compared with the assembly welding that carries out bottom (head), cylindrical shell ring and cover head in nuclear power station working-yard, can guarantee effective enforcement of plant-manufactured every advanced person, high-level efficiency technique, reduce the labour intensity that carries out bottom (head), cylindrical shell ring and cover head assembly welding, improve steel containment vessel integral constructing quality.
6) adopt this programme to carry out the construction of steel containment vessel, containment bottom (head), the assembly welding of cylindrical shell ring and cover head all carries out in manufacturing works, carry out the manufacture of parts with current workshop, bottom (head) is carried out in nuclear power station working-yard, the process for assembling and welding of cylindrical shell ring and cover head is compared, build the side tapers to 1 by two, be conducive to realize workshop parts manufacture and bottom (head), the merging of the assembly welding construction manager of cylindrical shell ring and cover head is integrated, reducing construction manager entirety drops into, reducing overall personnel drops into, the personnel that can also reduce monitoring party drop into, be conducive to improve supervisory efficiency, reduce the cost of supervise and control.
7) adopt this programme to carry out the construction of steel containment vessel, the assembly welding of containment bottom (head), cylindrical shell ring and cover head all carries out in manufacturing works, reduce to greatest extent the work of nuclear power station working-yard, alleviate the security control of nuclear power station working-yard, avoided impact and the restriction of the assembly welding work of nuclear power station working-yard other business on steel containment vessel bottom (head), cylindrical shell ring and cover head.
8) adopt this programme to carry out the construction of steel containment vessel, the assembly welding of containment bottom (head), cylindrical shell ring and cover head all carries out in manufacturing works, reduce to greatest extent assembling and the welding job of in nuclear island of nuclear power station, carrying out steel containment vessel, reducing crossed construction operation and high-altitude construction operation increases, and has reduced construction handling cost and managing risk.
9) adopt this programme to carry out the construction of steel containment vessel, the whole Transporting of containment bottom (head), cylindrical shell ring and cover head adopts half latent barge, and compared with the barge of deck, half latent barge hull is roomy, hull moldeed depth and draft are relatively little, reduce the on-the-spot harbour construction cost of nuclear power station.
10) adopt this programme to carry out the construction of steel containment vessel, the whole Transporting of containment bottom (head), cylindrical shell ring and cover head adopts half latent barge, meet under containment module transportation equal conditions, compared with the barge of deck, the metric tons deadweight all told of ship is relatively little, meets nuclear power station context code head in existing Nuclear Power Station standard and stops maximum tonnage (for example 5000t) requirement.
11) adopt this programme to carry out the construction of steel containment vessel, the whole Transporting of containment bottom (head), cylindrical shell ring and cover head adopts half latent barge, meet under containment module transportation equal conditions, compared with the barge of deck, hull moldeed depth and draft are relatively little, the metric tons deadweight all told of ship is relatively little, and the requirement in transportation navigation channel is reduced relatively.
It is to be noted, although the tun in specific embodiment herein all describes as an example of steel containment vessel of nuclear power station example, but, this description is not restrictive, tun is not limited to steel containment vessel of nuclear power station, and it can be the containment of other type of nuclear power station, can also be the tun using in the places such as chemical industry, oil storage or smelting, in other words the method, illustrating as an example of steel containment vessel of nuclear power station example is also applicable to these tuns.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can change these embodiment, scope of the present invention is limited by claims and equivalent thereof.
Claims (10)
1. a manufacture method for tun, comprising:
Modular design step: described tun is designed to bottom (head) module, cylindrical shell ring module and cover head module;
Minimum component units manufacturing step: manufacture the minimum component units for bottom (head) module, cylindrical shell ring module and cover head module in manufacturing works;
Module manufacturing step: in manufacturing works' assembling bottom (head) module, assembling cylindrical shell ring module and assembling cover head module;
Module transportation step: by the bottom (head) module assembling, the cylindrical shell ring module assembling and the cover head module assembling be the installation scene to tun with half latent barging; And
Module installation step: the bottom (head) module, cylindrical shell ring module and the cover head module hoisting that are transported to installation scene are put in place, and weld the girth joint between bottom (head) module, cylindrical shell ring module and cover head module.
2. method according to claim 1, wherein:
Described module manufacturing step also comprises that the module to manufacturing carries out whole detection and/or surface treatment.
3. method according to claim 1, wherein:
In module manufacturing step, bottom (head) module, cylindrical shell ring module and cover head module are carried out assembly welding in assembly welding frock separately.
4. method according to claim 1, wherein:
Described module transportation step comprises: utilize lifting hydraulic car voluntarily that bottom (head) module, cylindrical shell ring module and cover head module are loaded onto ship; Bottom (head) module, cylindrical shell ring module and the water transport of cover head module are transported to the harbour at installation scene; Utilize lifting hydraulic car voluntarily that bottom (head) module, cylindrical shell ring module and cover head module are unloaded a ship; And bottom (head) module, cylindrical shell ring module and cover head module are transported to installation scene.
5. method according to claim 4, wherein:
In module manufacturing step, bottom (head) module, cylindrical shell ring module and cover head module are carried out assembly welding in assembly welding frock separately; And
In module transportation step, described bottom (head) module, cylindrical shell ring module and cover head module are transported with together with assembly welding frock separately.
6. method according to claim 1, wherein:
In module manufacturing step, bottom (head) module, cylindrical shell ring module and cover head module parallel composition.
7. method according to claim 1, wherein:
Described module manufacturing step also comprises the enclosure group of module is installed in module.
8. according to the method described in any one in claim 1-7, wherein:
Described tun is the steel containment vessel using in nuclear power station, and described installation scene is nuclear power station working-yard, in described module installation step, by place to nuclear island to the bottom (head) module, cylindrical shell ring module and the cover head module hoisting that are transported to installation scene.
9. method according to claim 8, also comprises step:
After module installation step, the linkage interface between other system or equipment and containment is installed.
10. method according to claim 9, also comprises step:
Carry out the bulk testing of containment.
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