CN102243896A - Stainless steel heat-insulation layer of reactor pressure vessel of nuclear power station and main pipe - Google Patents
Stainless steel heat-insulation layer of reactor pressure vessel of nuclear power station and main pipe Download PDFInfo
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- CN102243896A CN102243896A CN2011101379986A CN201110137998A CN102243896A CN 102243896 A CN102243896 A CN 102243896A CN 2011101379986 A CN2011101379986 A CN 2011101379986A CN 201110137998 A CN201110137998 A CN 201110137998A CN 102243896 A CN102243896 A CN 102243896A
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- pressure vessel
- stainless steel
- insulation layer
- reactor pressure
- heat
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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
Abstract
The invention relates to stainless steel heat-insulation layers of a reactor pressure vessel of a nuclear power station and a main pipe, which are arranged on the outer side of the reactor pressure vessel and the main pipe, and covers the whole reactor pressure vessel and the main pipe. According to the invention, a plurality of independent insulation plates are spliced into an integral body. Each insulation plate comprises a shell body; a reflecting plate is filled in the shell body; the shell body is divided into peripheral frameworks and casing plates on the upper surface and the lower surface; the framework of each side is composed of an angle iron, an arc support plate and a plurality of edge side plates; the edge side plates are connected with the arc support plates; and the arc support plates are fixed on the angle irons. The present invention has advantages that, compared to frameworks provided by other companies wherein an entire block of stainless steel plate with thickness of 0.7mm is adopted, the stainless steel heat-insulation layer is capable of reducing a thermal bridge area, increasing a thermal bridge length and increasing a total thermal resistance. Thereby favorable effects of heat insulation are realized.
Description
Technical field
The present invention relates to a kind of nuclear power plant reactor pressure vessel and trunk line stainless steel heat-insulation layer.
Background technology
Nuclear power plant reactor pressure vessel and trunk line require the heat that its high temperature outside surface emits is isolated when normally moving, and reduce radiation loss, and a heat-insulation layer need be set, and the heat that pressure vessel is produced can be used for generating electricity effectively.By technical requirement: the heat loss amount of heat-insulation layer is not more than 175W/m
2, heat-insulation layer should keep the integrality and the reliability of its structure under normal operating condition of nuclear power station and safe shutdown earthquake (SSE) operating mode, and needs the reduction maintainer to be subjected to the influence of radiation dose and the safety of the instrument and meter in the protection nuclear island.
Summary of the invention
Technical matters to be solved by this invention is: a kind of nuclear power plant reactor pressure vessel and trunk line stainless steel heat-insulation layer are provided, satisfy the insulation requirement of nuclear power plant reactor pressure vessel and trunk line.
The technical solution adopted for the present invention to solve the technical problems is: a kind of nuclear power plant reactor pressure vessel and trunk line stainless steel heat-insulation layer, it is arranged on the reactor pressure vessel and the trunk line outside, entire reaction core pressure vessel and trunk line have been contained, it splices an integral body of forming by some plates that independently are incubated, the insulation plate comprises housing, fill reflecting plate in the housing, the framework around housing is divided into and the coverboard of upper and lower surface, the framework of each side is by angle steel, arc back up pad and plurality of sections avris plate constitute, connect by the arc back up pad between each section avris plate, the arc back up pad is fixed on the angle steel.
Use the thick concavo-convex stainless steel foil plate of semisphere that is pressed into of 0.05mm as the avris plate.
The thickness of angle steel, arc back up pad is 0.7mm, at Shell Plate inner face lining stiffening plate.
Heat-insulation layer adopts the low cobalt stainless steel of cobalt content≤0.05% as starting material.
The profile of heat-insulation layer has two kinds of tabular and arc plates.
Face mutually that the hot side of surface of contact is reserved with expansion gap between heat insulating block.
The invention has the beneficial effects as follows: the framework of stainless steel heat-insulation layer of the present invention is compared with the framework that the thick corrosion resistant plate of monoblock 0.7mm is pressed into other companies, reduced thermal bridge area, increased heat bridge length, entire thermal resistance has been increased, thereby reach good effect of heat insulation.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples;
Fig. 1 is a general structure synoptic diagram of the present invention;
Fig. 2 is a tabular warming plate block structure synoptic diagram of the present invention;
Fig. 3 is an arc warming plate block structure synoptic diagram of the present invention;
Fig. 4 is the structure explosive view of insulation plate of the present invention;
Fig. 5 is the structural representation of the framework of insulation plate of the present invention;
Fig. 6 is the shape and structure synoptic diagram of avris plate of the present invention;
Fig. 7 is the structural representation of arc back up pad of the present invention;
Fig. 8 is the heat insulating block connection place synoptic diagram that circumferentially faces mutually of the present invention;
Fig. 9 is the heat insulating block connection place synoptic diagram that axially faces mutually of the present invention;
Among the figure, 1. reactor pressure vessel 2. is incubated plate, 3. coverboard, 4. reflecting plate, 5. angle steel, 6. arc back up pad, 7. avris plate, 8. stiffening plate, 9. lapping plate, 10. expansion gap.
Embodiment
Nuclear power plant reactor pressure vessel shown in Fig. 1,2,3,4,5,6 and 7 and trunk line stainless steel heat-insulation layer, it is arranged on the reactor pressure vessel 1 and the trunk line outside, entire reaction core pressure vessel and trunk line have been contained, it splices an integral body of forming by some modes such as the riveted joint of plate 2 by lapping plate 9, bolt that independently are incubated, and the profile of heat-insulation layer has two kinds of tabular and arc plates.Described insulation plate 2 comprises housing, fill reflecting plate 4 in the housing, the framework around housing is divided into and the coverboard on inside and outside surface, the framework of described each side is made of angle steel 5, arc back up pad 6 and plurality of sections avris plate 7, connect by arc back up pad 6 between each section avris plate 7, arc back up pad 6 is fixed on the angle steel.Angle steel is 0.7mm with arc propping material thickness, and avris sheet material material thickness is 0.05mm, and the framework of stainless steel heat-insulation layer is supported by resistance spot welding with arc by angle steel and connects, and is formed by connecting with the resistance spot welding of avris plate again.This kind combination is compared with the framework that the thick corrosion resistant plate of monoblock 0.7mm is pressed into other companies, because of avris sheet material material thickness is 0.05mm, and is pressed into the semisphere concaveconvex shape, greatly reduces the thermal conductivity of frame, reduces the heat loss amount of whole heat-insulation layer.
Shown in Fig. 2 and 4, the insulation plate is according to the cavity radiation characteristic, and the moulding stainless steel reflection foil that utilizes high reflectance, any surface finish is as reflecting plate 4, and the heat radiation overwhelming majority that the pressure vessel wall surface launching is gone out reflects back, thus reduced radiation heat exchange greatly; Design special triangle oblique ripple reflection foil waveform simultaneously, to suppress the convection heat transfer in the interlayer.
Shown in Fig. 8 and 9,,, make the integral heat insulation layer possess antiseismic function to increase the strength of joint that faces mutually between heat insulating block at Shell Plate inner face lining stiffening plate 8.
Equipment chemical element cobalt (Co) in the material in the nuclear island of nuclear power station; behind the neutron long-term irradiation; to change highly radioactive isotope " cobalt 60 " into by " cobalt 58 "; for the reduction maintainer is subjected to the influence of radiation dose and the safety of the instrument and meter in the protection nuclear island, heat-insulation layer of the present invention adopts the low cobalt stainless steel of cobalt content≤0.05% as starting material.
Shown in Fig. 8 and 9, in order to eliminate the influence of stainless steel material thermal expansion to the integral heat insulation layer, heat-insulation layer of the present invention face mutually that the hot side of surface of contact is reserved with expansion gap 10 between heat insulating block, when the reactor pressure vessel wall surface temperature reaches normal working temperature, its slit is made up by the thermal expansion of stainless steel material.
Claims (6)
1. nuclear power plant reactor pressure vessel and trunk line stainless steel heat-insulation layer, it is arranged on the reactor pressure vessel (1) and the trunk line outside, entire reaction core pressure vessel and trunk line have been contained, it splices an integral body of forming by some plates (2) that independently are incubated, described insulation plate (2) comprises housing, fill reflecting plate (4) in the housing, it is characterized in that: the framework around described housing is divided into and the coverboard (3) of upper and lower surface, the framework of described each side is by angle steel (5), arc back up pad (6) and plurality of sections avris plate (7) constitute, connect by arc back up pad (6) between each section avris plate (7), arc back up pad (6) is fixed on the angle steel.
2. nuclear power plant reactor pressure vessel according to claim 1 and trunk line stainless steel heat-insulation layer is characterized in that: use the thick concavo-convex stainless steel foil plate of semisphere that is pressed into of 0.05mm as avris plate (7).
3. nuclear power plant reactor pressure vessel according to claim 1 and 2 and trunk line stainless steel heat-insulation layer is characterized in that: the thickness of described angle steel (5), arc back up pad (6) is 0.7mm, at Shell Plate inner face lining stiffening plate (8).
4. nuclear power plant reactor pressure vessel according to claim 1 and trunk line stainless steel heat-insulation layer is characterized in that: described heat-insulation layer adopts the low cobalt stainless steel of cobalt content≤0.05% as starting material.
5. nuclear power plant reactor pressure vessel according to claim 1 and trunk line stainless steel heat-insulation layer is characterized in that: the profile of described heat-insulation layer has two kinds of tabular and arc plates.
6. nuclear power plant reactor pressure vessel according to claim 1 and trunk line stainless steel heat-insulation layer is characterized in that: face mutually that the hot side of surface of contact is reserved with expansion gap (10) between heat insulating block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110137998.6A CN102243896B (en) | 2011-05-26 | 2011-05-26 | Stainless steel heat-insulation layer of reactor pressure vessel of nuclear power station and main pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110137998.6A CN102243896B (en) | 2011-05-26 | 2011-05-26 | Stainless steel heat-insulation layer of reactor pressure vessel of nuclear power station and main pipe |
Publications (2)
| Publication Number | Publication Date |
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| CN102243896A true CN102243896A (en) | 2011-11-16 |
| CN102243896B CN102243896B (en) | 2014-04-09 |
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| CN201110137998.6A Active CN102243896B (en) | 2011-05-26 | 2011-05-26 | Stainless steel heat-insulation layer of reactor pressure vessel of nuclear power station and main pipe |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411998A (en) * | 2011-11-29 | 2012-04-11 | 阿诺德绝缘材料技术（吴江）有限公司 | Heat preserving cover special for nuclear power |
| CN103971761A (en) * | 2014-05-06 | 2014-08-06 | 中广核工程有限公司 | Metal reflection type insulating plate for radiation shielding in nuclear power station |
| CN105405477A (en) * | 2015-11-05 | 2016-03-16 | 中国核动力研究设计院 | Heat insulation separation plate applicable to internally-arranged steam pressure stabilizer |
| CN109930758A (en) * | 2019-03-01 | 2019-06-25 | 中国核工业华兴建设有限公司 | Tilting nuclear power station transport channel system and its construction method |
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| CN201754339U (en) * | 2010-07-22 | 2011-03-02 | 中国原子能科学研究院 | Metal thermal insulating layer for sodium cooled fast reactor vessel |
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2011
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| US4732177A (en) * | 1983-12-21 | 1988-03-22 | Interatom Gmbh | Hot gas container with insulation formed of overlapping ceramic bodies |
| CN101004238A (en) * | 2006-12-03 | 2007-07-25 | 岑保卫 | Metal insulation layer for equipment and pipe |
| CN101787794A (en) * | 2010-03-04 | 2010-07-28 | 焦作市柏林建筑模板有限公司 | Building template and building combined template suitable for quick assembly |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411998A (en) * | 2011-11-29 | 2012-04-11 | 阿诺德绝缘材料技术（吴江）有限公司 | Heat preserving cover special for nuclear power |
| CN103971761A (en) * | 2014-05-06 | 2014-08-06 | 中广核工程有限公司 | Metal reflection type insulating plate for radiation shielding in nuclear power station |
| CN103971761B (en) * | 2014-05-06 | 2017-01-04 | 中广核工程有限公司 | Nuclear power station can realize the metallic reflection type warming plate of radiation shield |
| CN105405477A (en) * | 2015-11-05 | 2016-03-16 | 中国核动力研究设计院 | Heat insulation separation plate applicable to internally-arranged steam pressure stabilizer |
| CN109930758A (en) * | 2019-03-01 | 2019-06-25 | 中国核工业华兴建设有限公司 | Tilting nuclear power station transport channel system and its construction method |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN102243896B (en) | 2014-04-09 |
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Address after: 213102 Jiangsu City, Wujin Province, the town of the town of road, No. 88-89 Applicant after: KTK GROUP CO., LTD. Address before: 213011 remote observation industry zone, Wujin District, Jiangsu, Changzhou Applicant before: Kik Group Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: JINCHUANG CO., LTD. TO: KTK GROUP CO., LTD. |
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Effective date of registration: 20160311 Address after: 213102 Jiangsu City, Wujin Province, the town of the town of road, No. 88-89 Patentee after: KTK GROUP CO., LTD. Patentee after: Changzhou Dongfang Jinchuang Machinery Co., Ltd. Address before: 213102 Jiangsu City, Wujin Province, the town of the town of road, No. 88-89 Patentee before: KTK GROUP CO., LTD. |