CN102243896B - 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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- CN102243896B CN102243896B CN201110137998.6A CN201110137998A CN102243896B CN 102243896 B CN102243896 B CN 102243896B CN 201110137998 A CN201110137998 A CN 201110137998A CN 102243896 B CN102243896 B CN 102243896B
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- pressure vessel
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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 main pipeline stainless steel heat-insulation layer.
Background technology
Nuclear power plant reactor pressure vessel and main pipeline, when normally moving, require the heat that its high temperature outside surface is emitted to isolate, 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 integrality and the reliability of its structure under nuclear power station accidental conditions and safe shutdown earthquake (SSE) operating mode, and needs reduction maintainer to be subject to the impact of radiation dose and the safety of the instrument and meter in 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 main pipeline stainless steel heat-insulation layer are provided, meet the insulation requirement of nuclear power plant reactor pressure vessel and main pipeline.
The technical solution adopted for the present invention to solve the technical problems is: a kind of nuclear power plant reactor pressure vessel and main pipeline stainless steel heat-insulation layer, it is arranged on reactor pressure vessel and main pipeline outside, whole reactor pressure vessel and main pipeline have been contained, the integral body that it is comprised of some independently heat insulation board splicings, heat insulation board comprises housing, in housing, fill reflecting plate, housing is divided into the framework of surrounding and the coverboard of upper and lower surface, the framework of each side is by angle steel, arc back up pad and some sections of side plates form, between each section of side plate, by arc back up pad, connect, arc back up pad is fixed on angle steel.
Use the thick concavo-convex stainless steel foil plate of semisphere that is pressed into of 0.05mm as side 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.
The hot side that faces mutually heat insulating block Contact face is reserved with expansion gap.
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.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described;
Fig. 1 is general structure schematic diagram of the present invention;
Fig. 2 is tabular heat insulation board structural representation of the present invention;
Fig. 3 is arc heat insulation board structural representation of the present invention;
Fig. 4 is the structure explosive view of heat insulation board of the present invention;
Fig. 5 is the structural representation of the framework of heat insulation board of the present invention;
Fig. 6 is the shape and structure schematic diagram of side 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 schematic diagram that circumferentially faces mutually of the present invention;
Fig. 9 is the heat insulating block connection place schematic diagram that axially faces mutually of the present invention;
In figure, 1. reactor pressure vessel, 2. heat insulation board, 3. coverboard, 4. reflecting plate, 5. angle steel, 6. arc back up pad, 7. side plate, 8. stiffening plate, 9. lapping plate, 10. expansion gap.
Embodiment
Nuclear power plant reactor pressure vessel as shown in Fig. 1,2,3,4,5,6 and 7 and main pipeline stainless steel heat-insulation layer, it is arranged on reactor pressure vessel 1 and main pipeline outside, whole reactor pressure vessel and main pipeline have been contained, it by some independently heat insulation boards 2 mode such as the riveted joint by lapping plate 9, bolt splice the integral body forming, the profile of heat-insulation layer has two kinds of tabular and arc plates.Described heat insulation board 2 comprises housing, in housing, fill reflecting plate 4, housing is divided into the framework of surrounding and the coverboard on inside and outside surface, the framework of each described side consists of angle steel 5, arc back up pad 6 and some sections of side plates 7, between each section of side plate 7, by arc back up pad 6, connect, arc back up pad 6 is fixed on angle steel.Angle steel is 0.7mm with arc propping material thickness, and side plate material thickness is 0.05mm, and the framework of stainless steel heat-insulation layer is supported and connects by resistance spot welding with arc by angle steel, then is formed by connecting with side plate resistance spot welding.This kind of combination compared with the framework that the thick corrosion resistant plate of monoblock 0.7mm is pressed into other companies, because side plate material thickness is 0.05mm, and is pressed into semisphere concaveconvex shape, greatly reduces the thermal conductivity of frame, reduces the heat loss amount of whole heat-insulation layer.
As shown in Figures 2 and 4, heat insulation board, according to cavity radiation characteristic, utilizes the moulding stainless steel reflection foil of high reflectance, any surface finish as reflecting plate 4, and the heat radiation overwhelming majority that pressure vessel wall surface launching is gone out reflects back, thus reduced radiation heat exchange greatly; Design special triangle oblique ripple reflection foil waveform, to suppress the convection heat transfer in interlayer simultaneously.
As shown in FIG. 8 and 9, at Shell Plate inner face lining stiffening plate 8, to increase the strength of joint facing mutually between heat insulating block, make integral heat insulation layer possess earthquake resistance.
In nuclear island of nuclear power station, establish chemical element cobalt (Co) in lay-by material; after neutron long-term irradiation; to change highly radioactive isotope " Co 60 " into by " cobalt 58 "; for reduction maintainer is subject to the impact of radiation dose and the safety of the instrument and meter in protection nuclear island, heat-insulation layer of the present invention adopts the low cobalt stainless steel of cobalt content≤0.05% as starting material.
As shown in FIG. 8 and 9, in order to eliminate the impact of stainless steel material thermal expansion on integral heat insulation layer, the hot side that faces mutually heat insulating block Contact face of heat-insulation layer of the present invention is reserved with expansion gap 10, when reactor pressure vessel wall surface temperature reaches normal working temperature, by the thermal expansion of stainless steel material, its gap is made up.
Claims (5)
1. a nuclear power plant reactor pressure vessel and main pipeline stainless steel heat-insulation layer, it is arranged on reactor pressure vessel (1) and main pipeline outside, whole reactor pressure vessel and main pipeline have been contained, the integral body that it is comprised of some independently heat insulation boards (2) splicing, described heat insulation board (2) comprises housing, in housing, fill reflecting plate (4), it is characterized in that: described housing is divided into the framework of surrounding and the coverboard of upper and lower surface (3), the framework of each described side is by angle steel (5), arc back up pad (6) and some sections of side plates (7) form, between each section of side plate (7), by arc back up pad (6), connect, arc back up pad (6) is fixed on angle steel, use is pressed into the concavo-convex stainless steel foil plate of semisphere as side plate (7).
2. nuclear power plant reactor pressure vessel according to claim 1 and main pipeline 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).
3. nuclear power plant reactor pressure vessel according to claim 1 and main pipeline 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.
4. nuclear power plant reactor pressure vessel according to claim 1 and main pipeline stainless steel heat-insulation layer, is characterized in that: the profile of described heat-insulation layer has two kinds of tabular and arc plates.
5. nuclear power plant reactor pressure vessel according to claim 1 and main pipeline stainless steel heat-insulation layer, is characterized in that: the hot side that faces mutually heat insulating block Contact face is reserved with expansion gap (10).
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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN102243896A CN102243896A (en) | 2011-11-16 |
| CN102243896B true 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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Families Citing this family (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 |
| 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 |
| CN105405477B (en) * | 2015-11-05 | 2017-12-26 | 中国核动力研究设计院 | A kind of thermal baffle for being applied to built-in steam pressurizer |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
-
2011
- 2011-05-26 CN CN201110137998.6A patent/CN102243896B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Non-Patent Citations (4)
| Title |
|---|
| PC工程反应堆压力容器金属保温层设计和研制;沈秋平等;《核电工程与技术》;20000630;第13卷(第2期);第29页第2段第1-2行,第30页第11段，第31页第4段 * |
| 沈秋平等.PC工程反应堆压力容器金属保温层设计和研制.《核电工程与技术》.2000,第13卷(第2期),第29页第2段第1-2行,第30页第11段,第31页第4段. |
| 缓解严重事故后果的反应堆压力容器金属保温层设计和研究;陶金;《核电工程与技术》;20070331;第20卷(第1期);第23-27页 * |
| 陶金.缓解严重事故后果的反应堆压力容器金属保温层设计和研究.《核电工程与技术》.2007,第20卷(第1期),23-27. |
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| CN102243896A (en) | 2011-11-16 |
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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. |