CN103174912A - Nuclear power plant device and composite type insulating layer used for pipeline - Google Patents
Nuclear power plant device and composite type insulating layer used for pipeline Download PDFInfo
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- CN103174912A CN103174912A CN2013100119849A CN201310011984A CN103174912A CN 103174912 A CN103174912 A CN 103174912A CN 2013100119849 A CN2013100119849 A CN 2013100119849A CN 201310011984 A CN201310011984 A CN 201310011984A CN 103174912 A CN103174912 A CN 103174912A
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Abstract
The invention provides a nuclear power plant device and a composite type insulating layer used for a pipeline. The composite type insulating layer is made by a plurality of independent insulating blocks in a lap joint mode; when temperature of the nuclear power plant device or outer wall of the pipeline is higher than 200 DEG C, the insulating blocks sequentially fill an inner insulating layer, a first supporting layer, a neutron shielding layer which wraps isolation materials, a second supporting layer, a gamma shielding layer, a third supporting layer and an outer insulating layer in a shell. When the temperature of the nuclear power plant device or outer wall of the pipeline is lower than 200 DEG C, the insulating blocks sequentially fill the neutron shielding layer which wraps the isolation materials, the second supporting layer, the gamma shielding layer, the third supporting layer and the outer insulating layer in the shell. On the basis of meeting insulating requirements, the nuclear power plant device and the composite type insulating layer used for the pipeline can reduce irradiation dose received by people and conform to the design principle of 'as low as reasonable achievable'.
Description
Technical field
The present invention relates to Nuclear Power Plant Equipment and pipeline thermal insulation layer, be specifically related to the compound thermal insulation layer of a kind of Nuclear Power Plant Equipment and pipeline.
Background technique
Nuclear Power Plant Equipment and pipeline need to carry out its high temperature surface arranged outside thermal insulation layer heat insulationly when normal operation, to reduce as far as possible thermal loss, improve heat-economy.Due to the particularity of nuclear power plant, need to the radiation dose that radiation shielding material may be subject to reduce as far as possible personnel be set at some equipment or pipeline external.
Nuclear power plant separately considers usually for the demand of heat insulation and radiation shielding at present, relevant device is set respectively to satisfy the demand.Generally speaking, for Nuclear Power Plant Equipment and pipe insulation, the thermal insulation layer that usually adopts metallic tape type thermal insulation layer or nonmetallic material to make; Corresponding shielding material is set to satisfy design requirement for the position that needs radiation shielding.
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 satisfy simultaneously Nuclear Power Plant Equipment and pipeline for the requirement of insulation and radiation shielding.
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 forms by some independently insulation block overlap joints; During higher than 200 ℃, described insulation block loads successively inner thermal insulating layer, supporting layer one, coats neutron shield layer, supporting layer two, gamma shielding layer, supporting layer three and the external thermal insulation of isolated material in housing when Nuclear Power Plant Equipment or pipeline outer wall temperature; When Nuclear Power Plant Equipment or pipeline outer wall temperature during lower than 200 ℃, described insulation block in housing successively filling coat neutron shield layer, supporting layer two, gamma shielding layer, supporting layer three, the external thermal insulation of isolated material.
A kind of Nuclear Power Plant Equipment as above and the compound thermal insulation layer of pipeline, its described thermal insulation layer arranges lapping plate on the overlap joint gap of adjacent insulation block, on lapping plate with hasp; Handle is arranged on housing.
A kind of Nuclear Power Plant Equipment as above and the compound thermal insulation layer of pipeline, its described housing is fixedly formed by corrosion resistant plate welding or riveting method, 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, its described inner thermal insulating layer thickness is 10mm to 25mm; In the zone that the nonmetallic material restriction is used, adopt and be pressed into the stainless steel paillon foil of definite shape as inner thermal insulating layer; In other zone, adopt microporous silicate, rock wool, perlite, Foaming of phenolic resin material, polyurethane foamed material or aerogel material to make inner thermal insulating layer.
A kind of Nuclear Power Plant Equipment as above and the compound thermal insulation layer of pipeline, its described supporting layer one 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 peripheries are fixed by the spot welding mode with the housing joint.
A kind of Nuclear Power Plant Equipment as above and the compound thermal insulation layer of pipeline, its described gamma shielding layer is made 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, its described isolated material is the stainless steel paillon foil, 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, its described neutron shield layer boracic silicone 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 its described external thermal insulation is 30mm to 80mm, in the zone that the nonmetallic material restriction is used, adopts and is pressed into the stainless steel paillon foil of definite shape as external thermal insulation; In other zone, adopt microporous silicate, rock wool, perlite, Foaming of phenolic resin material, polyurethane foamed material or aerogel material to make external thermal insulation.
A kind of Nuclear Power Plant Equipment as above and the compound thermal insulation layer of pipeline, its described insulation block is plate or the bent plate type.
Effect of the present invention is:
Thermal insulation layer of the present invention has adopted the insulation block of composite structure, be provided with neutron shield layer and gamma shielding layer in insulation block, therefore with respect to traditional thermal insulation layer, the present invention can be on the basis of satisfying the insulation demand, the irradiation dose that the minimizing personnel are subject to satisfies 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 with the physical property of avoiding shielding material.The Main Function of supporting layer is supporting neutron shield layer, in order to avoid damage the structure of adjacent functional layer.Gamma shielding layer Main Function is to reduce gamma radiation, and this layer needs are placed between the supported on both sides layer.The Main Function of isolated material is to coat the neutron shield layer.External thermal insulation is used for reducing thermal loss, improves heat-economy, and guarantees that the insulation block outside wall temperature complies with the national standard requirements.
Description of drawings
Fig. 1 is the described a kind of composite structure insulation block schematic cross-section of embodiment 1;
Fig. 2 is the described a kind of composite structure insulation block schematic cross-section of 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---the neutron shield layer; 6---supporting layer two; 7---the 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 pipeline are further described with compound thermal insulation layer.
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 integral body by some independently insulation blocks, coats 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 is fixed on housing 1 with 11, two handle 1 symmetries of hasp on lapping plate 12.Lapping plate is set can reduces thermal loss, hasp, handle and lapping plate can be fixed by the mode of spot welding or riveted joint.
In Nuclear Power Plant Equipment or pipeline outer wall temperature during higher than 200 ℃, insulation block of the present invention loads successively inner thermal insulating layer 2, supporting layer 1, coats neutron shield layer 5, supporting layer 26, gamma shielding layer 7, supporting layer 38 and the external thermal insulation 9 of isolated material in housing 1, to satisfy equipment or pipeline to the requirement of different temperatures and different radiation shieldings, thereby 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 welding or riveting method fixedly form, the thickness of corrosion resistant plate is at 0.5mm to 1mm(for example 0.5mm, 0.6mm or 1mm).
Inner thermal insulating layer 2 thickness are for example 10mm, 20mm or 25mm of 10mm to 25mm().In the zone that the nonmetallic material restriction is used, adopt and be pressed into the stainless steel paillon foil of definite shape (as ripple, hemisphere pit etc.) as inner thermal insulating layer 2; In other zone, adopt the non-metallic insulation materials such as microporous silicate, rock wool, perlite, Foaming of phenolic resin material, polyurethane foamed material or aerogel material 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 with the physical property of avoiding 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(for example 0.5mm, 0.6mm or 1mm).Described supporting layer 1 or supporting layer 26 or supporting layer 38 peripheries are fixed by the spot welding mode with housing 1 joint.The Main Function of supporting layer is supporting neutron shield layer, in order to avoid damage the structure of adjacent functional layer.
Isolated material 4 is 06Cr19Ni10(or 304) the stainless steel paillon foil, the thickness of this paillon foil is at 0.05mm to 0.2mm(for example 0.05mm, 0.1mm or 0.2mm).The Main Function of isolated material 4 is to coat neutron shield layer 5.
The thickness of external thermal insulation 9 is for example 30mm, 50mm or 80mm of 30mm to 80mm(), in the zone that the nonmetallic material restriction is used, adopt and be pressed into the stainless steel paillon foil of definite shape as external thermal insulation 9; In other zone, adopt microporous silicate, rock wool, perlite, Foaming of phenolic resin material, polyurethane foamed material or aerogel material to make external thermal insulation 9.The principle that the external thermal insulation material is selected is with inner thermal insulating layer 2.External thermal insulation 9 is used for reducing thermal loss, improves heat-economy, and guarantees that the insulation block outside wall temperature complies with the national standard requirements.
Be with embodiment 1 difference:
As shown in Figure 2, in Nuclear Power Plant Equipment or pipeline outer wall temperature during lower than 200 ℃, described insulation block in housing 1 successively filling coat neutron shield layer 5, supporting layer 26, gamma shielding layer 7, supporting layer 38, the external thermal insulation 9 of isolated material.
Claims (10)
1. a Nuclear Power Plant Equipment and the compound thermal insulation layer of pipeline, this thermal insulation layer forms by some independently insulation blocks overlap joints; It is characterized in that:
During higher than 200 ℃, described insulation block loads successively inner thermal insulating layer (2), supporting layer one (3), coats neutron shield layer (5), supporting layer two (6), gamma shielding layer (7), supporting layer three (8) and the external thermal insulation (9) of isolated material in housing (1) when Nuclear Power Plant Equipment or pipeline outer wall temperature;
When Nuclear Power Plant Equipment or pipeline outer wall temperature during lower than 200 ℃, described insulation block in housing (1) successively filling coat neutron shield layer (5), supporting layer two (6), gamma shielding layer (7), supporting layer three (8), the external thermal insulation (9) of isolated material.
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 thermal insulation layer arranges lapping plate (12) on the overlap joint gap of adjacent insulation block, lapping plate (12) is upper with hasp (11); Handle (1) is arranged on housing (1).
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 housing (1) is fixedly formed by corrosion resistant plate welding or riveting method, and the thickness of corrosion resistant plate is at 0.5mm to 1mm.
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 inner thermal insulating layer (2) thickness is 10mm to 25mm; In the zone that the nonmetallic material restriction is used, adopt and be pressed into the stainless steel paillon foil of definite shape as inner thermal insulating layer (2); In other zone, adopt microporous silicate, rock wool, perlite, Foaming of phenolic resin material, polyurethane foamed material or aerogel material to make inner thermal insulating layer (2).
5. 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) peripheries are fixed by the spot welding mode with housing (1) joint.
6. 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 gamma shielding layer (7) is made of stereotype, and the thickness of this stereotype is at 10mm to 20mm.
7. 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 isolated material (4) is the stainless steel paillon foil, and the thickness of this paillon foil is at 0.05mm to 0.2mm.
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: described neutron shield layer (5) is made by boracic silicone or Boron-containing-PE plate, and the thickness of neutron shield layer is at 30mm to 70mm.
9. 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 zone that the nonmetallic material restriction is used, adopt and be pressed into the stainless steel paillon foil of definite shape as external thermal insulation (9); In other zone, adopt microporous silicate, rock wool, perlite, Foaming of phenolic resin material, polyurethane foamed material or aerogel material to make external thermal insulation (9).
10. 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 insulation block is plate or the 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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| CN103174912B CN103174912B (en) | 2015-08-26 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107731320A (en) * | 2017-11-01 | 2018-02-23 | 上海核工程研究设计院有限公司 | A kind of radiation shielding structure applied to nuclear power station |
| CN109296869A (en) * | 2018-12-04 | 2019-02-01 | 中国核动力研究设计院 | A kind of nuclear leve equipment and pipeline disperse filled composite insulating layer |
| CN109300557A (en) * | 2018-12-04 | 2019-02-01 | 中国核动力研究设计院 | The complex function metallic insulation of shielding material is filled out in a kind of unilateral side |
| CN109585051A (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 centre |
| 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 |
| CN109595428A (en) * | 2018-12-04 | 2019-04-09 | 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 unilateral side |
| CN109616227A (en) * | 2018-12-04 | 2019-04-12 | 中国核动力研究设计院 | A kind of disperse filled composite function metallic insulation |
| CN109616228A (en) * | 2018-12-04 | 2019-04-12 | 中国核动力研究设计院 | The complex function metallic insulation of shielding material is filled out in a kind of centre |
| CN109616226A (en) * | 2018-12-04 | 2019-04-12 | 中国核动力研究设计院 | The compound function metallic insulation of shielding material is filled out in a kind of two sides |
| 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 |
| CN115143345A (en) * | 2022-05-13 | 2022-10-04 | 安徽工业大学 | Nuclear power station loop pipeline detachable heat-preservation shielding integrated device and using method |
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| CN201014140Y (en) * | 2006-11-03 | 2008-01-30 | 亚士漆(上海)有限公司 | Different thermal insulation material combined decorated sheet |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107731320A (en) * | 2017-11-01 | 2018-02-23 | 上海核工程研究设计院有限公司 | A kind of radiation shielding structure applied to nuclear power station |
| CN109616227A (en) * | 2018-12-04 | 2019-04-12 | 中国核动力研究设计院 | A kind of disperse filled composite function metallic insulation |
| CN109616226A (en) * | 2018-12-04 | 2019-04-12 | 中国核动力研究设计院 | The compound function metallic insulation of shielding material is filled out in a kind of two sides |
| CN109585051A (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 centre |
| 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 |
| CN109595428A (en) * | 2018-12-04 | 2019-04-09 | 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 unilateral side |
| CN109296869A (en) * | 2018-12-04 | 2019-02-01 | 中国核动力研究设计院 | A kind of nuclear leve equipment and pipeline disperse filled composite insulating layer |
| CN109616228A (en) * | 2018-12-04 | 2019-04-12 | 中国核动力研究设计院 | The complex function metallic insulation of shielding material is filled out in a kind of centre |
| CN109300557A (en) * | 2018-12-04 | 2019-02-01 | 中国核动力研究设计院 | The complex function metallic insulation of shielding material is filled out in a kind of unilateral side |
| 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 |
| 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 |
| 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 |
| 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 |
| CN115143345A (en) * | 2022-05-13 | 2022-10-04 | 安徽工业大学 | Nuclear power station loop pipeline detachable heat-preservation shielding integrated device and using method |
| 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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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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