CN103174912B - A kind of Nuclear Power Plant Equipment and the compound thermal insulation layer of pipeline - Google Patents
A kind of Nuclear Power Plant Equipment and the compound thermal insulation layer of pipeline Download PDFInfo
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- CN103174912B CN103174912B CN201310011984.9A CN201310011984A CN103174912B CN 103174912 B CN103174912 B CN 103174912B CN 201310011984 A CN201310011984 A CN 201310011984A CN 103174912 B CN103174912 B CN 103174912B
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Abstract
The invention provides a kind of Nuclear Power Plant Equipment and the compound thermal insulation layer of pipeline, this thermal insulation layer is formed by some independently insulation block overlap joints; When Nuclear Power Plant Equipment or pipeline outer wall temperature are higher than 200 DEG C, described insulation block loads inner thermal insulating layer, supporting layer one, the neutron shield layer of coated isolated material, supporting layer two, gamma shielding layer, supporting layer three and external thermal insulation successively in housing; When Nuclear Power Plant Equipment or pipeline outer wall temperature are lower than 200 DEG C, described insulation block loads neutron shield layer, supporting layer two, gamma shielding layer, supporting layer three, the external thermal insulation of coated isolated material successively in housing.The present invention can on the basis of satisfied insulation demand, the irradiation dose that minimizing personnel are subject to, and meets the design principle of " reasonable is as far as possible low ".
Description
Technical field
The present invention relates to Nuclear Power Plant Equipment and pipeline thermal insulation layer, be specifically related to a kind of Nuclear Power Plant Equipment and the compound thermal insulation layer of pipeline.
Background technique
Nuclear Power Plant Equipment and pipeline, when normally running, need to carry out heat insulation to its high temperature surface arranged outside thermal insulation layer, to reduce thermal loss as far as possible, improve heat-economy.Due to the particularity of nuclear power plant, need to arrange at some equipment or pipeline external the radiation dose that radiation shielding material may be subject to reduce personnel as far as possible.
Current nuclear power plant separately considers usually for demand that is heat insulation and radiation shielding, arranges relevant device respectively to satisfy the demand.Generally speaking, for Nuclear Power Plant Equipment and pipe insulation, usually adopt the thermal insulation layer that metallic tape type thermal insulation layer or nonmetallic material are made; For needing the position of radiation shielding, corresponding shielding material is set to meet design requirement.
Summary of the invention
The object of the present invention is to provide the compound thermal insulation layer of a kind of Nuclear Power Plant Equipment and pipeline, to meet the requirement for insulation and radiation shielding of Nuclear Power Plant Equipment and pipeline simultaneously.
Realize the technological scheme of the object of the invention: the compound thermal insulation layer of a kind of Nuclear Power Plant Equipment and pipeline, this thermal insulation layer is formed by some independently insulation block overlap joints; When Nuclear Power Plant Equipment or pipeline outer wall temperature are higher than 200 DEG C, described insulation block loads inner thermal insulating layer, supporting layer one, the neutron shield layer of coated isolated material, supporting layer two, gamma shielding layer, supporting layer three and external thermal insulation successively in housing; When Nuclear Power Plant Equipment or pipeline outer wall temperature are lower than 200 DEG C, described insulation block loads neutron shield layer, supporting layer two, gamma shielding layer, supporting layer three, the external thermal insulation of coated isolated material successively in housing.
A kind of Nuclear Power Plant Equipment as above and the compound thermal insulation layer of pipeline, the thermal insulation layer described in it arranges lapping plate, with hasp on lapping plate on the overlap joint gap of adjacent insulation block; Handle is arranged on housing.
A kind of Nuclear Power Plant Equipment as above and the compound thermal insulation layer of pipeline, the housing described in it is welded by corrosion resistant plate or riveting method fixedly forms, and the thickness of corrosion resistant plate is at 0.5mm to 1mm.
A kind of Nuclear Power Plant Equipment as above and the compound thermal insulation layer of pipeline, the inner thermal insulating layer thickness described in it is 10mm to 25mm; In the region that nonmetallic material restriction uses, adopt the stainless steel paillon foil being pressed into definite shape as inner thermal insulating layer; In other region, microporous silicate, rock wool, perlite, Foaming of phenolic resin material, polyurethane foamed material or aerogel material is adopted to make inner thermal insulating layer.
A kind of Nuclear Power Plant Equipment as above and the compound thermal insulation layer of pipeline, the supporting layer one described in it or supporting layer two or supporting layer three are made by corrosion resistant plate, and the thickness of this corrosion resistant plate is at 0.5mm to 1mm; Described supporting layer one or supporting layer two or supporting layer three periphery and housing joint are fixed by spot welding mode.
A kind of Nuclear Power Plant Equipment as above and the compound thermal insulation layer of pipeline, the gamma shielding layer described in it is made up of stereotype, and the thickness of this stereotype is at 10mm to 20mm.
A kind of Nuclear Power Plant Equipment as above and the compound thermal insulation layer of pipeline, the isolated material described in it is stainless steel paillon foil, and the thickness of this paillon foil is at 0.05mm to 0.2mm.
A kind of Nuclear Power Plant Equipment as above and the compound thermal insulation layer of pipeline, the neutron shield layer boracic silicone described in it or Boron-containing-PE plate are made, and the thickness of neutron shield layer is at 30mm to 70mm.
A kind of Nuclear Power Plant Equipment as above and the compound thermal insulation layer of pipeline, the thickness of the external thermal insulation described in it is 30mm to 80mm, in the region that nonmetallic material restriction uses, adopts the stainless steel paillon foil being pressed into definite shape as external thermal insulation; In other region, microporous silicate, rock wool, perlite, Foaming of phenolic resin material, polyurethane foamed material or aerogel material is adopted to make external thermal insulation.
A kind of Nuclear Power Plant Equipment as above and the compound thermal insulation layer of pipeline, the insulation block described in it is plate or bent plate type.
Effect of the present invention is:
Thermal insulation layer of the present invention have employed the insulation block of composite structure, neutron shield layer and gamma shielding layer is provided with in insulation block, therefore relative to conventional vacuum layer, the present invention can on the basis of satisfied insulation demand, the irradiation dose that minimizing personnel are subject to, meets the design principle of " reasonable is as far as possible low ".
The Main Function of inner thermal insulating layer is that equipment or pipeline external temperature are reduced to below the serviceability temperature of neutron shield layer and gamma shielding layer material therefor, changes to avoid the physical property of shielding material.The Main Function of supporting layer is supporting neutron shield layer, in order to avoid damage the structure of successive functional layers.Gamma shielding layer Main Function reduces gamma radiation, and this layer needs to be placed between supported on both sides layer.The Main Function of isolated material is coated neutron shield layer.External thermal insulation, for reducing thermal loss, improves heat-economy, and guarantees that insulation block outside wall temperature complies with the national standard requirements.
Accompanying drawing explanation
Fig. 1 is a kind of composite structure insulation block schematic cross-section described in embodiment 1;
Fig. 2 is a kind of composite structure insulation block schematic cross-section described in embodiment 2;
Fig. 3 is the plan view of flat compound thermal insulation layer;
In figure: 1---housing; 2---inner thermal insulating layer; 3---supporting layer one; 4---isolated material; 5---neutron shield layer; 6---supporting layer two; 7---gamma shielding layer; 8---supporting layer three; 9---external thermal insulation; 10---handle; 11---hasp; 12---lapping plate.
Embodiment
Below in conjunction with the drawings and specific embodiments, a kind of Nuclear Power Plant Equipment of the present invention and the compound thermal insulation layer of pipeline are further described.
Embodiment 1
As shown in figures 1 and 3, a kind of Nuclear Power Plant Equipment of the present invention and the compound thermal insulation layer of pipeline, it is overlapped to form entirety by some independently insulation blocks, coated Nuclear Power Plant Equipment or pipeline.Insulation block is plate or bent plate type (determining according to equipment or pipeline profile).
Fixed plate 12 on the overlap joint gap of adjacent insulation block, with hasp 11 on lapping plate 12, two handle 1 symmetries are fixed on housing 1.Arrange lapping plate and can reduce thermal loss, hasp, handle and lapping plate are fixed by the mode of spot welding or riveted joint.
When Nuclear Power Plant Equipment or pipeline outer wall temperature are higher than 200 DEG C, insulation block of the present invention loads inner thermal insulating layer 2, supporting layer 1, the neutron shield layer 5 of coated isolated material, supporting layer 26, gamma shielding layer 7, supporting layer 38 and external thermal insulation 9 successively in housing 1, to meet the requirement to different temperatures and different radiation shielding of equipment or pipeline, thus improve nuclear power plant's heat-economy, and reduce the risk of personnel's high temperature and irradiation.
Housing 1 is by 06Cr19Ni10(or 304) corrosion resistant plate welds or riveting method fixedly forms, the thickness of corrosion resistant plate is at 0.5mm to 1mm(such as 0.5mm, 0.6mm or 1mm).
Inner thermal insulating layer 2 thickness is 10mm to 25mm(such as 10mm, 20mm or 25mm).In the region that nonmetallic material restriction uses, adopt the stainless steel paillon foil being pressed into definite shape (as ripple, hemisphere pit etc.) as inner thermal insulating layer 2; In other region, the non-metallic insulation materials such as microporous silicate, rock wool, perlite, Foaming of phenolic resin material, polyurethane foamed material or aerogel material are adopted to make inner thermal insulating layer 2.The Main Function of inner thermal insulating layer 2 is that equipment or pipeline external temperature are reduced to below the serviceability temperature of neutron shield layer and gamma shielding layer material therefor, changes to avoid the physical property of shielding material.Therefore whether the setting of inner thermal insulating layer can decide according to equipment or pipeline outer wall temperature with thickness.
Supporting layer 1 or supporting layer 26 or supporting layer 38 are by 06Cr19Ni10(or 304) corrosion resistant plate makes, the thickness of this corrosion resistant plate is at 0.5mm to 1mm(such as 0.5mm, 0.6mm or 1mm).Described supporting layer 1 or supporting layer 26 or supporting layer 38 periphery and housing 1 joint are fixed by spot welding mode.The Main Function of supporting layer is supporting neutron shield layer, in order to avoid damage the structure of successive functional layers.
Gamma shielding layer 7 is made up of stereotype, and the thickness of this stereotype is at 10mm to 20mm(such as 10mm, 15mm or 20mm).Gamma shielding layer 7 Main Function reduces gamma radiation, and this layer needs to be placed between supported on both sides layer.
Isolated material 4 is 06Cr19Ni10(or 304) stainless steel paillon foil, the thickness of this paillon foil is at 0.05mm to 0.2mm(such as 0.05mm, 0.1mm or 0.2mm).The Main Function of isolated material 4 is coated neutron shield layers 5.
Neutron shield layer 5 is made up of boracic silicone or Boron-containing-PE plate, and the thickness of neutron shield layer is at 30mm to 70mm(such as 30mm, 50mm or 70mm).Neutron shield layer 5 is coated by isolated material 4, and the thickness of neutron shield layer 5 is decided by the neutron radiation intensity of equipment or pipeline.
The thickness of external thermal insulation 9 is 30mm to 80mm(such as 30mm, 50mm or 80mm), in the region that nonmetallic material restriction uses, adopt the stainless steel paillon foil being pressed into definite shape as external thermal insulation 9; In other region, microporous silicate, rock wool, perlite, Foaming of phenolic resin material, polyurethane foamed material or aerogel material is adopted to make external thermal insulation 9.The principle of external thermal insulation Material selec-tion is with inner thermal insulating layer 2.External thermal insulation 9, for reducing thermal loss, improves heat-economy, and guarantees that insulation block outside wall temperature complies with the national standard requirements.
Embodiment 2
Be with the difference of embodiment 1:
As shown in Figure 2, when Nuclear Power Plant Equipment or pipeline outer wall temperature are lower than 200 DEG C, described insulation block loads neutron shield layer 5, supporting layer 26, gamma shielding layer 7, supporting layer 38, the external thermal insulation 9 of coated isolated material successively in housing 1.
Claims (9)
1. the compound thermal insulation layer of Nuclear Power Plant Equipment and pipeline, this thermal insulation layer is formed by some independently insulation block overlap joints; It is characterized in that:
When Nuclear Power Plant Equipment or pipeline outer wall temperature are higher than 200 DEG C, described insulation block loads inner thermal insulating layer (2), supporting layer one (3), the neutron shield layer (5) of coated isolated material, supporting layer two (6), gamma shielding layer (7), supporting layer three (8) and external thermal insulation (9) successively in housing (1);
When Nuclear Power Plant Equipment or pipeline outer wall temperature are lower than 200 DEG C, described insulation block loads neutron shield layer (5), supporting layer two (6), gamma shielding layer (7), supporting layer three (8), the external thermal insulation (9) of coated isolated material successively in housing (1);
Described thermal insulation layer arranges lapping plate (12) on the overlap joint gap of adjacent insulation block, with hasp (11) on lapping plate (12); Handle (1) is arranged on housing (1).
2. a kind of Nuclear Power Plant Equipment according to claim 1 and the compound thermal insulation layer of pipeline, is characterized in that: described housing (1) is welded by corrosion resistant plate or riveting method fixedly forms, and the thickness of corrosion resistant plate is at 0.5mm to 1mm.
3. a kind of Nuclear Power Plant Equipment according to claim 1 and the compound thermal insulation layer of pipeline, is characterized in that: described inner thermal insulating layer (2) thickness is 10mm to 25mm; In the region that nonmetallic material restriction uses, adopt the stainless steel paillon foil being pressed into definite shape as inner thermal insulating layer (2); In other region, microporous silicate, rock wool, perlite, Foaming of phenolic resin material, polyurethane foamed material or aerogel material is adopted to make inner thermal insulating layer (2).
4. a kind of Nuclear Power Plant Equipment according to claim 1 and the compound thermal insulation layer of pipeline, it is characterized in that: described supporting layer one (3) or supporting layer two (6) or supporting layer three (8) are made by corrosion resistant plate, and the thickness of this corrosion resistant plate is at 0.5mm to 1mm; Described supporting layer one (3) or supporting layer two (6) or supporting layer three (8) periphery and housing (1) joint are fixed by spot welding mode.
5. a kind of Nuclear Power Plant Equipment according to claim 1 and the compound thermal insulation layer of pipeline, is characterized in that: described gamma shielding layer (7) is made up of stereotype, and the thickness of this stereotype is at 10mm to 20mm.
6. a kind of Nuclear Power Plant Equipment according to claim 1 and the compound thermal insulation layer of pipeline, is characterized in that: described isolated material (4) is stainless steel paillon foil, and the thickness of this paillon foil is at 0.05mm to 0.2mm.
7. a kind of Nuclear Power Plant Equipment according to claim 1 and the compound thermal insulation layer of pipeline, is characterized in that: described neutron shield layer (5) is made up of boracic silicone or Boron-containing-PE plate, and the thickness of neutron shield layer is at 30mm to 70mm.
8. a kind of Nuclear Power Plant Equipment according to claim 1 and the compound thermal insulation layer of pipeline, it is characterized in that: the thickness of described external thermal insulation (9) is 30mm to 80mm, in the region that nonmetallic material restriction uses, adopt the stainless steel paillon foil being pressed into definite shape as external thermal insulation (9); In other region, microporous silicate, rock wool, perlite, Foaming of phenolic resin material, polyurethane foamed material or aerogel material is adopted to make external thermal insulation (9).
9. a kind of Nuclear Power Plant Equipment according to claim 1 and the compound thermal insulation layer of pipeline, is characterized in that: described insulation block is plate or bent plate type.
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| CN201310011984.9A CN103174912B (en) | 2013-01-14 | 2013-01-14 | A kind of Nuclear Power Plant Equipment and the compound thermal insulation layer of pipeline |
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| CN201310011984.9A CN103174912B (en) | 2013-01-14 | 2013-01-14 | A kind of Nuclear Power Plant Equipment and the compound thermal insulation layer of pipeline |
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| CN103174912A CN103174912A (en) | 2013-06-26 |
| CN103174912B true CN103174912B (en) | 2015-08-26 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103400606A (en) * | 2013-07-26 | 2013-11-20 | 中广核工程有限公司 | Neutron shielding device for main pipeline of upper chamber of reactor pit of nuclear power plant |
| CN107417234A (en) * | 2017-09-20 | 2017-12-01 | 中国核动力研究设计院 | Aeroge heat preserving and insulating material with γ irradiation shielding properties and preparation method thereof |
| CN107731320B (en) * | 2017-11-01 | 2024-08-13 | 上海核工程研究设计院股份有限公司 | Radiation shielding structure applied to nuclear power station |
| CN109578750A (en) * | 2018-12-04 | 2019-04-05 | 中国核动力研究设计院 | A kind of nuclear leve equipment and pipeline fill out shielding material insulating layer with two sides |
| CN109616226B (en) * | 2018-12-04 | 2023-02-28 | 中国核动力研究设计院 | Composite metal heat-insulating layer with shielding materials filled on two sides |
| CN109296869B (en) * | 2018-12-04 | 2020-12-29 | 中国核动力研究设计院 | Dispersion filling composite heat insulation layer for nuclear-grade equipment and pipeline |
| CN109585051B (en) * | 2018-12-04 | 2021-01-22 | 中国核动力研究设计院 | Nuclear-grade equipment and pipeline are with middle shielding material heat preservation of filling in |
| CN109595428B (en) * | 2018-12-04 | 2021-08-24 | 中国核动力研究设计院 | Single-side filling shielding material heat-insulating layer for nuclear-grade equipment and pipeline |
| CN109616227B (en) * | 2018-12-04 | 2020-12-29 | 中国核动力研究设计院 | Dispersion filling composite function metal heat preservation |
| CN109616228B (en) * | 2018-12-04 | 2020-12-29 | 中国核动力研究设计院 | Composite functional metal heat-insulating layer filled with shielding material in middle |
| CN109300557B (en) * | 2018-12-04 | 2021-03-30 | 中国核动力研究设计院 | Composite functional metal heat-insulating layer with shielding material filled on one side |
| CN114962862A (en) * | 2022-05-13 | 2022-08-30 | 安徽工业大学 | Single-layer heat insulation shielding device for high-temperature pipeline of nuclear power station |
| CN115143345B (en) * | 2022-05-13 | 2024-02-06 | 安徽工业大学 | Nuclear power station primary loop pipeline detachable heat preservation and shielding integrated device and use method |
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| EP0615596B1 (en) * | 1991-12-07 | 1996-08-21 | ARNOTT, Thomas Cristopher | Improvements relating to pipeline insulation and anticorrosion protection |
| CN201014140Y (en) * | 2006-11-03 | 2008-01-30 | 亚士漆(上海)有限公司 | Composite decorative panels with heterogeneous thermal insulation materials |
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| CN103174912A (en) | 2013-06-26 |
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Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: Shanghai Nuclear Engineering Research & Design Institute |
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Application publication date: 20130626 Assignee: Jiangsu Jinhuan Technology Co.,Ltd. Assignor: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Contract record no.: X2022990000232 Denomination of invention: A composite insulation layer for nuclear power plant equipment and pipeline Granted publication date: 20150826 License type: Exclusive License Record date: 20220429 |
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Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |
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