CN101942895B - Method for integrally constructing steel lining of nuclear reactor plant of nuclear power station - Google Patents
Method for integrally constructing steel lining of nuclear reactor plant of nuclear power station Download PDFInfo
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- CN101942895B CN101942895B CN2010102618886A CN201010261888A CN101942895B CN 101942895 B CN101942895 B CN 101942895B CN 2010102618886 A CN2010102618886 A CN 2010102618886A CN 201010261888 A CN201010261888 A CN 201010261888A CN 101942895 B CN101942895 B CN 101942895B
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- steel lining
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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 integrally constructing a steel lining of a nuclear reactor plant of a nuclear power station, which comprises the following steps of: S1, performing off-site splicing on wallboards of the steel lining; S2, arranging and fixing penetrating pieces on the wallboards of the steel lining; S3, integrally hoisting in position the spliced steel lining; and S4, performing on-site local position adjustment and welding and fixing on the steel lining after the steel lining is integrally hoisted in position. The method provided by the invention has the advantages of shortening a construction period and staggering welding labor peaks so as to reduce security risks in on-site construction and fulfill the aim of reducing the cost by performing the off-site splicing on the wallboards of the steel lining, arranging and fixing the penetrating pieces onto the wallboards of the steel lining and then integrally hoisting in position the steel lining.
Description
Technical field
The present invention relates to the realm of building construction, more particularly, relate to the construction method of assembly unit integral body in a kind of steel lining of nuclear power plant reactor factory building.
Background technology
Present building course in the steel lining of domestic nuclear power reactor building, carry out the monolithic assembly unit, in place of steel lining backing plate, then weld vertical weld seam and circumferential welded seam, then in the perforate of carrying out penetration piece and anchoring piece, welding at the construction of hydropower scene.
In prior art, the installation amount of the welding of construction of hydropower on-site consolidation and penetration piece is large, takies most of engineering time, causes time duration longer.Particularly the construction of steel lining backing plate is on the key building link of nuclear island civil engineering, and the length of its engineering time directly has influence on the construction of inner structure and outer barrel body concrete, the whole completion time of project of impact.Take to carry out at the construction of hydropower scene assembly unit welding and easily cause welding recruitment peak, thereby cause human cost to increase.
Summary of the invention
The technical problem to be solved in the present invention is, has the defect of construction period length for the steel lining construction method of nuclear power station reactor building in prior art, and monolithic construction method in a kind of Nuclear Power Station reactor building steel lining is provided, and can shorten the construction period.
The technical solution adopted for the present invention to solve the technical problems is: monolithic construction method in a kind of Nuclear Power Station reactor building steel lining, it is characterized in that, and comprise the following steps:
S1: carry out the assembly unit of steel lining backing plate outside the venue;
S2: penetration piece is fixed on steel lining backing plate;
S3: in the steel lining after assembly unit is installed, integral hoisting is in place;
S4: in steel lining integral hoisting in place after, carry out in steel lining the local location adjustment in and be welded and fixed.
Monolithic construction method in a kind of Nuclear Power Station reactor building of the present invention steel lining, preferred, further comprising the steps of:
S0: the processing and fabricating of monolithic steel lining backing plate and single penetration piece.
Monolithic construction method in a kind of Nuclear Power Station reactor building of the present invention steel lining, preferred, be cylindric in steel lining in described step S3.
Monolithic construction method in a kind of Nuclear Power Station reactor building of the present invention steel lining, preferred, described S1 step comprises the following steps:
S1-1: the horizontal assembly unit of steel lining backing plate, to form steel lining backing flaggy;
S1-2: the vertical assembly unit of steel lining backing plate, to form steel lining backing panel;
Described step S1-1 and step S1-2 hocket.
Monolithic construction method in a kind of Nuclear Power Station reactor building of the present invention steel lining, preferred, described step S1 and described step S2 hocket successively.
Monolithic construction method in a kind of Nuclear Power Station reactor building of the present invention steel lining, preferred, after carrying out the assembly unit of two-layer described steel lining backing flaggy in described step S1, then carry out described step S2.
Monolithic construction method in a kind of Nuclear Power Station reactor building of the present invention steel lining, preferred, described step S2 comprises the following steps:
S2-1: determine the installation site of penetration piece on steel lining backing plate;
S2-2: carry out pre-drilled cavity on steel lining backing plate, the sleeve of penetration piece penetrates in pre-drilled cavity;
S2-3: along the ring stiffener cutting of steel lining wallboard of penetration piece, ring stiffener and steel lining backing plate carry out spot welding, and temporary supporting is set;
S2-4: ring stiffener and steel lining backing plate are welded and fixed.
Monolithic construction method in a kind of Nuclear Power Station reactor building of the present invention steel lining, preferred, described step S3 comprises the following steps:
S3-1: before integral hoisting, hoisting rig is checked in steel lining;
S3-2: simulation lifting test;
S3-3: use hoisting rig that integral hoisting in steel lining is in place.
The present invention can reach following beneficial effect: by assembly unit and the penetration piece that carries out steel lining backing plate outside the venue of constructing outside the venue in construction, be fixed on steel lining backing plate, and then integral hoisting is in place, can shorten the construction period, the welding recruitment peak of staggering, reduce the site operation security risk, reach the purpose that reduces costs.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is the device schematic diagram of monolithic construction method in Nuclear Power Station reactor building steel lining of the present invention;
Fig. 2 is the enlarged diagram of local A in steel lining in Fig. 1;
Fig. 3 a is the installation site embodiment schematic diagram of monolithic steel lining backing plate of the present invention and penetration piece;
Fig. 3 b is installation site embodiment two schematic diagram of monolithic steel lining backing plate of the present invention and penetration piece;
Fig. 3 c is installation site embodiment three schematic diagram of monolithic steel lining backing plate of the present invention and penetration piece;
Fig. 3 d is installation site embodiment one schematic diagram of two blocks of steel lining backing plates of the present invention and penetration piece;
Fig. 3 e is installation site embodiment two schematic diagram of two blocks of steel lining backing plates of the present invention and penetration piece;
Fig. 3 f is the installation site schematic diagram of polylith steel lining backing plate of the present invention and penetration piece;
Fig. 4 a is that the mounting means master of the penetration piece of sleeve outer diameter≤450mm of the present invention looks schematic diagram;
Fig. 4 b is the mounting means A-A cross-sectional schematic of the penetration piece of sleeve outer diameter≤450mm of the present invention;
Fig. 5 a is that the mounting means master of the penetration piece of 450mm＜sleeve outer diameter of the present invention≤900mm looks schematic diagram;
Fig. 5 b is the mounting means A-A cross-sectional schematic of 450mm＜sleeve outer diameter of the present invention≤900mm penetration piece;
Fig. 6 a is sleeve outer diameter of the present invention〉the mounting means master of the penetration piece of 900mm looks schematic diagram;
Fig. 6 b is sleeve outer diameter of the present invention〉the mounting means A-A cross-sectional schematic of the penetration piece of 900mm;
Fig. 7 is the schematic flow sheet of monolithic construction method in Nuclear Power Station reactor building steel lining of the present invention.
Embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
As depicted in figs. 1 and 2,1 be to be combined into by 6 welding of polylith steel lining backing plate 5 and penetration piece in steel lining.Monolithic steel lining backing plate transverse weld becomes steel lining backing flaggy, and the successively assembly unit of steel lining backing flaggy forms in steel lining whole; Penetration piece 6 runs through and is fixed on steel lining backing plate 5.
Monolithic steel lining backing plate 5 and single penetration piece 6 are factory-made components, can need to carry out composite assembly according to design.In the process that is prefabricated in the factory, penetration piece 6 is that the ring stiffener by columnar penetration piece sleeve and annular is welded to form.
The installation site of penetration piece on steel lining backing plate is to determine according to design, and as shown in Fig. 3 a, Fig. 3 b, Fig. 3 c, Fig. 3 d, Fig. 3 e and Fig. 3 f, the installation site relation of penetration piece and steel lining backing plate can have various ways.
Be mounted with a penetration piece on monolithic steel lining backing plate, as shown in Fig. 3 a; Be mounted with two, three or a plurality of penetration piece on monolithic steel lining backing plate, as shown in Fig. 3 b and Fig. 3 c.
Position relationship between two steel lining backing plates and penetration piece also can have multiple, as shown in Fig. 3 d and 3e.Between monolithic steel lining backing plate and monolithic steel lining backing plate, by being welded and fixed, the connected mode between two steel lining backing plates can be transverse weld, as Fig. 3 d; Also can vertically weld, as shown in Figure 3 e.
Further, the array configuration of multi-disc steel lining backing plate and penetration piece can have multiple, and as shown in Fig. 3 f, polylith steel lining backing plate carries out horizontal assembly unit and vertically assembly unit, between steel lining backing plate by being welded to connect.
The prefabricated process of monolithic steel lining backing plate: monolithic steel lining backing plate is prefabricate member, size dimension has certain specification, monolithic steel lining backing plate is that small parts is welded, as shown in Fig. 3 a, Fig. 3 b, Fig. 3 c, Fig. 3 d, Fig. 3 e and Fig. 3 f, factory's weld seam 3 forms in the prefabricated process of monolithic steel lining backing plate.
The assembly unit process of steel lining backing plate: be mainly to carry out assembly unit by welding between steel lining backing plate, two steel lining backing plates carry out horizontal assembly unit, and monolithic steel lining backing plate assembly unit stratification piecewise, successively be assembled into cylindrical shell.The composite assembly of steel lining backing plate is outer by being welded at the construction field (site), can form field welding 4 in this process, as shown in Fig. 3 d, Fig. 3 e and Fig. 3 f.
Steel lining backing plate 5 is installed engagement process with penetration piece 6: before penetration piece was installed, the sleeve of penetration piece and ring stiffener 7 welded and complete in workshop.Carry out steel lining backing plate 5 outside the venue, with penetration piece 6, compounding operation is installed, at first be to carry out pre-drilled cavity on the relevant position of steel lining backing plate 5, the sleeve of penetration piece 6 is passed in pre-drilled cavity, then along ring stiffener 7 precise cutting steel lining backing plates, follow circular ring stiffener 7 and tentatively be fixed on steel lining backing plate 5 by spot welding, finally ring stiffener 7 and steel lining backing plate 5 are welded and fixed.For preventing that steel lining backing plate 5 from local deformations occurring, need to arrange temporary supporting in installation process, the mounting means of temporary supporting bar is according to the sleeve outer diameter of the cylindric penetration piece 63 kinds of modes that varied in size.As shown in Figs. 4a and 4b, the sleeve outer diameter of penetration piece 6 is less than 450mm or equal 450mm, single temporary supporting bar 8 is set can meets stability requirement., for fixing temporary supporting bar 8, also be provided with the stiffening rib 9 to 8 fixations of temporary supporting bar.
As shown in Fig. 5 a and 5b, the sleeve outer diameter of penetration piece 6 is greater than 450mm, and while being less than or equal to 900mm, according to stability requirement, two temporary supporting bars 8 that certain angle need to be set support below 6, two temporary supporting bars 8 of penetration piece and are provided with the stiffening rib 9 fixing with steel lining backing plate 5.
As shown in Fig. 6 a and 6b, the sleeve outer diameter of penetration piece 6, greater than 900mm, arranges two vertical temporary supporting bars 81 and two horizontal temporary supporting bars 82, and vertical temporary supporting bar 81 is vertical affixed with horizontal temporary supporting bar 82.Vertical temporary supporting bar 81 1 ends fixedly penetration piece 6, one ends are fixed on concrete barrel by built-in fitting 10.Vertical temporary supporting bar 81 is channel-section steel, and horizontal temporary supporting bar 82 is angle steel or channel-section steel.
Monolithic construction method in a kind of Nuclear Power Station reactor building steel lining provided by the invention as shown in Figure 7, comprises the following steps: the processing and fabricating of monolithic steel lining backing plate and single penetration piece in the S0 workshop; Assembly unit and S2 penetration piece that S1 carries out steel lining backing plate outside the venue are fixed on steel lining backing plate; Whole in place by crane lifting in steel lining after the S3 assembly unit is installed; S4 carries out in steel lining the position adjustment and is welded and fixed.
The assembly unit process that steel lining backing plate is carried out in construction outside the venue comprises: the horizontal assembly unit of steel lining backing plate, to form steel lining backing flaggy; The vertical assembly unit of steel lining backing plate, to form steel lining backing panel.Preferably, construct in the good steel lining of assembly unit outside the venue and be cylindric.Its assembly unit process can first form the assembly unit of monolithic steel lining backing plate steel lining backing flaggy, then steel lining backing flaggy is successively welded and forms cylinder-shaped steel lining integral body.Construction refers to that outside the venue place is different from the construction original position of reactor construction, and is preferred, and construction is selected outside the venue near the place working-yard, so that the lifting of integral body in the steel lining that assembly unit is completed.
Further, the assembly unit process of steel lining backing plate and the fixed installation process of penetration piece hocket successively, after the assembly unit of completing two-layer steel lining backing flaggy, carry out the installation of corresponding penetration piece.
The sequence of operation that penetration piece is fixed on steel lining backing plate comprises: determine the installation site of penetration piece on steel lining backing plate; Carry out pre-drilled cavity on steel lining backing plate; Along ring stiffener precise cutting steel lining backing plate, carry out spot welding between ring stiffener and steel lining backing plate and realize preliminary fixing, temporary supporting is set; Ring stiffener and steel lining backing plate are welded and fixed.
Whole in crane 2 lifting steel linings preliminary step in place comprises to working-yard: before integral hoisting, hoisting rig is checked in steel lining; Simulation lifting test; Use hoisting rig that integral hoisting in steel lining is in place.
In steel lining integral hoisting in place after, the adjustment of position need to be carried out in part, then with the construction interface be welded and fixed.
Monolithic construction method in a kind of Nuclear Power Station reactor building steel lining provided by the invention, carry out the assembly unit process of lining wallboard and the fixed installation process of penetration piece outside at the construction field (site), its assembly unit is become a cylinder-shaped steel lining whole, through hoisted in position, final fixed installation.Thisly by assembling assembly unit, working-yard outside working-yard, carry out final method of installing, improved assembly unit flowing water construction method in the conventional one-piece field, make the engineering time in working-yard greatly reduce, shorten the construction period, the welding recruitment peak of staggering, reach the purpose that reduces costs.
The above is described embodiments of the invention by reference to the accompanying drawings; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention;, not breaking away from the scope situation that aim of the present invention and claim protect, also can make a lot of forms, within these all belong to protection of the present invention.
Claims (7)
1. monolithic construction method in a Nuclear Power Station reactor building steel lining, is characterized in that, comprises the following steps:
S0: the processing and fabricating that carries out monolithic steel lining backing plate and single penetration piece in workshop;
S1: in construction, carry out the assembly unit of steel lining backing plate outside the venue;
S2: in construction, described penetration piece is fixed on described steel lining backing plate outside the venue;
S3: in the steel lining after assembly unit is completed, integral hoisting is in place;
S4: in steel lining integral hoisting in place after, carry out in steel lining the local location adjustment in and be welded and fixed.
2. integral hoisting construction method in steel lining according to claim 1, is characterized in that, is cylindric in steel lining in described step S3.
3. monolithic construction method in Nuclear Power Station reactor building steel lining according to claim 1, is characterized in that, described S1 step comprises the following steps:
S1-1: the horizontal assembly unit of steel lining backing plate, to form steel lining backing flaggy;
S1-2: the vertical assembly unit of steel lining backing plate, to form steel lining backing panel;
Described step S1-1 and step S1-2 hocket.
4. monolithic construction method in Nuclear Power Station reactor building steel lining according to claim 3, is characterized in that, described step S1 and described step S2 hocket successively.
5. monolithic construction method in Nuclear Power Station reactor building steel lining according to claim 4, is characterized in that, after carrying out the assembly unit of two-layer described steel lining backing flaggy in described step S1, then carries out described step S2.
6. monolithic construction method in Nuclear Power Station reactor building steel lining according to claim 1, is characterized in that, described step S2 comprises the following steps:
S2-1: determine the installation site of penetration piece on steel lining backing plate;
S2-2: carry out pre-drilled cavity on steel lining backing plate, the sleeve of penetration piece penetrates in pre-drilled cavity;
S2-3: along the ring stiffener cutting of steel lining wallboard of penetration piece, ring stiffener and steel lining backing plate carry out spot welding, and temporary supporting is set;
S2-4: ring stiffener and steel lining backing plate are welded and fixed.
7. monolithic construction method in Nuclear Power Station reactor building steel lining according to claim 1, is characterized in that, described step S3 comprises the following steps:
S3-1: before integral hoisting, hoisting rig is checked in steel lining;
S3-2: simulation lifting test;
S3-3: use hoisting rig that integral hoisting in steel lining is in place.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102618886A CN101942895B (en) | 2010-08-24 | 2010-08-24 | Method for integrally constructing steel lining of nuclear reactor plant of nuclear power station |
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| CN2010102618886A CN101942895B (en) | 2010-08-24 | 2010-08-24 | Method for integrally constructing steel lining of nuclear reactor plant of nuclear power station |
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| CN101942895B true CN101942895B (en) | 2013-11-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2753764C1 (en) * | 2021-01-25 | 2021-08-23 | Федеральное государственное бюджетное образовательное учреждение высшего образования Северо-Кавказский горно-металлургический институт государственный технологический университет) | Reactor section of npp with increased seismic resistance |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518311B (en) * | 2011-12-20 | 2014-12-03 | 中国核工业二三建设有限公司 | Method for mounting nuclear island end beam of nuclear power station |
| CN103286519B (en) * | 2012-02-24 | 2016-01-27 | 中国核工业第二四建设有限公司 | A kind of nuclear power station Leak-tight liner manufacture method |
| CN104141373B (en) * | 2013-05-07 | 2016-12-28 | 中国核工业二四建设有限公司 | A kind of adjusting apparatus being applied to nuclear island Leak-tight liner |
| CN109930758B (en) * | 2019-03-01 | 2020-08-25 | 中国核工业华兴建设有限公司 | Inclined nuclear power station transportation channel system and construction method thereof |
| CN115417290A (en) * | 2022-07-19 | 2022-12-02 | 中广核工程有限公司 | Steel lining module construction method, hoisting tool and limiting tool |
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| CN1479320A (en) * | 2002-07-29 | 2004-03-03 | ��ʽ���綫֥ | Nuclear reactor safety casing |
| CN201319263Y (en) * | 2008-11-20 | 2009-09-30 | 中国核电工程有限公司 | Reactor concrete containment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2753764C1 (en) * | 2021-01-25 | 2021-08-23 | Федеральное государственное бюджетное образовательное учреждение высшего образования Северо-Кавказский горно-металлургический институт государственный технологический университет) | Reactor section of npp with increased seismic resistance |
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| CN101942895A (en) | 2011-01-12 |
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Address after: 518023 No. 69 Shennan Middle Road, Shenzhen, Guangdong, Futian District Co-patentee after: CHINA GENERAL NUCLEAR POWER Corp. Patentee after: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd. Address before: 518023 No. 69 Shennan Middle Road, Shenzhen, Guangdong, Futian District Co-patentee before: CHINA GUANGDONG NUCLEAR POWER GROUP Co.,Ltd. Patentee before: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd. |
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