CN110364279A - A kind of nuclear leakage protection wall and its application - Google Patents
A kind of nuclear leakage protection wall and its application Download PDFInfo
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- CN110364279A CN110364279A CN201910515235.7A CN201910515235A CN110364279A CN 110364279 A CN110364279 A CN 110364279A CN 201910515235 A CN201910515235 A CN 201910515235A CN 110364279 A CN110364279 A CN 110364279A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/02—Selection of uniform shielding materials
- G21F1/04—Concretes; Other hydraulic hardening materials
- G21F1/042—Concretes combined with other materials dispersed in the carrier
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/12—Laminated shielding materials
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Revetment (AREA)
Abstract
It include sacrificial layer and the protective layer for being wrapped in sacrificial layer outer surface the invention discloses a kind of nuclear leakage protection wall and its application, the wall, the sacrificial layer is made of ferrosilicon matter sacrificial concrete material, and the protective layer is made of ultra-high performance concrete material.Wall is protected in nuclear leakage disclosed in this invention, the transient heat load that can be effective against the steam pressure of the non-condensable gas generated after reactor core fusant is reacted with reactor pit area ferrosilicon matter sacrificial concrete and generate to reactor pit area surrounding support structure.In addition enable ultra-high performance concrete as second protective barrier, preventing ferrosilicon matter sacrificial concrete thickness deficiency causes reactor core fusant to leak as aggregate using hematite.In addition, nuclear leakage of the present invention protects wall in use, can simplify reactor core catcher structure, while can effective protection nuclear leakage.
Description
Technical field
The present invention relates to a kind of nuclear leakage protection wall and its applications, belong to the field of building materials.
Background technique
The energy is the important impetus of national society's development and economic growth.With pushing away for low-carbon economy and sustainable development
Into, nuclear power become uniquely can extensive substitute fossil fuels the energy.If but nuclear power station occur major accident also can to society and
Environment causes tremendous influence.At present, it has been proposed that reactor core fusant is reacted with sacrificial concrete reduce melt temperature and
The generation Ⅲ nuclear power station fusant stabilization technique of radiativity.The technology considers sacrificial concrete as containment substrate protective
Layer guarantees that reactor core fusant does not leak with enough sacrificial concrete thickness, supports around reactor pit area without considering
Structure suffered hot load and its high-temperature loading property under high temperature environment.It thus needs for locating for reactor pit area support construction
Hot environment propose corresponding safeguard procedures, prevent the nuclear leakage problem as caused by reactor core catcher structural failure, this is right
Stable response has great importance after the safe operation and calamity of nuclear power station.
Summary of the invention
Goal of the invention: in order to solve the above-mentioned technical problems, the present invention provides a kind of nuclear leakage protection wall and its applications.
Technical solution: to achieve the goals above, the invention adopts the following technical scheme:
A kind of nuclear leakage protection wall, including sacrificial layer and the protective layer for being wrapped in sacrificial layer outer surface, the sacrifice
Layer is made of ferrosilicon matter sacrificial concrete material, and the protective layer is made of ultra-high performance concrete material, the superelevation
Performance concrete material is mainly made of the raw material of following weight ratio:
550-600 parts of ordinary portland cement, heavy pearl 250-300 parts fine, 85-100 parts of silicon ash, 750-800 parts of river sand,
900-980 parts of hematite, 0.5-3 parts of vinal, 180-240 parts of steel fibre, 18-30 parts of water-reducing agent, water 150-190
Part.
The ferrosilicon matter sacrificial concrete material is mainly by ordinary portland cement, flyash, silicon ash, silica, red iron
Ore, vinal, polycarboxylate water-reducer and water are made.
As preferred:
The ordinary portland cement is PII52.5 grades of ordinary portland cements.
The fine heavy pearl is in global shape, continuous ionic exchange, ultra-fine, solid, wherein SiO2Content is 50%-
54%, Al2O3Content is 20-25%, Fe2O3Content is 4-5%, CaO content 12-14%.
SiO in the silicon ash2Content is more than or equal to 95%, and specific surface area is not less than 20000m2/kg。
The river sand fineness modulus is 1.8, partial size 0-5mm, density 2.55-2.70g/cm3。
The hematite, particle size range 0.125mm-4mm, Fe2O3Content is more than or equal to 90%.
The vinal is pencil monofilament, and draw ratio is greater than 100, density 0.91g/cm3, fusing point 160-
170℃。
The steel fibre is straight steel fibre, and draw ratio is greater than 60, and tensile strength is more than or equal to 3000MPa.
The water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid.
The preparation method of the ultra-high performance concrete material, comprising the following steps:
(1) ordinary portland cement, fine heavy pearl, silicon ash, river sand and hematite are taken, mixing gelling is uniformly mixing to obtain
Material；
(2) water-reducing agent is added in Xiang Shangshu epoxy glue gel material and water is uniformly mixing to obtain mixture slurry；
(3) vinal and steel fibre are added in Xiang Shangshu mixture slurry, be uniformly mixed to get.
Wall is protected in the nuclear leakage, can be poured by conventional method, for example first casting protective layer is poured sacrifice again
Layer.
The nuclear leakage protection wall is preventing the application in nuclear leakage, and nucleus leakage protection can be made using it
Device effectively prevent nuclear leakage.
Technical effect: compared with the existing technology, wall is protected in nuclear leakage disclosed in this invention, can by incorporation fiber
Be effective against the non-condensable gas generated after reactor core fusant is reacted with reactor pit area ferrosilicon matter sacrificial concrete steam pressure and
The transient heat load that reactor pit area surrounding support structure is generated.In addition using hematite as aggregate, so that very-high performance is mixed
Solidifying soil can be used as second protective barrier, and prevention ferrosilicon matter sacrificial concrete thickness deficiency causes reactor core fusant to leak.In addition,
Nuclear leakage of the present invention protects wall in use, can simplify reactor core catcher structure, while can effective protection nuclear leakage.
Detailed description of the invention
Fig. 1 is the sectional view of the nucleus leakage defense device of the embodiment of the present invention, wherein 1: pressure vessel；2: sacrificing
Layer；3: protective layer.
Specific embodiment
Below with reference to specific example, the present invention is furture elucidated.
Raw materials used in following embodiment is claimed below:
Ordinary portland cement is PII52.5 grades of ordinary portland cements.
Fine heavy pearl is in global shape, continuous ionic exchange, ultra-fine, solid, wherein SiO2Content is 50%-54%, Al2O3
Content is 20-25%, Fe2O3Content is 4-5%, CaO content 12-14%.
SiO in silicon ash2Content is more than or equal to 95%, and specific surface area is not less than 20000m2/kg。
River sand fineness modulus is 1.8, partial size 0-5mm, density 2.55-2.70g/cm3。
The particle size range of hematite is 0.125mm-4mm, Fe2O3Content is more than or equal to 90%.
Vinal is pencil monofilament, and draw ratio is greater than 100, density 0.91g/cm3, fusing point is 160-170 DEG C.
Steel fibre is straight steel fibre, and draw ratio is greater than 60, and tensile strength is more than or equal to 3000MPa.
Water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid.
Water is tap water or drinking water, meets the requirement of " concrete water standard " (JGJ63-2006).
Sacrificial layer in each embodiment is made of ferrosilicon matter sacrificial concrete material, according to parts by weight, selected original
Expect match ratio include following components: 390 parts of ordinary portland cement, 130.0 parts of flyash, 20.0 parts of silicon ash, 1060 parts of silica,
990 parts of hematite, 2.3 parts of vinal, 5.6 parts of polycarboxylate water-reducer, 187 parts of water.And according to sacrificial concrete material
Material manufacturing technique is prepared and is conserved.
Embodiment 1
Wall is protected in a kind of nuclear leakage, including sacrificial layer and the protective layer for being wrapped in sacrificial layer outer surface, in the present embodiment
Protective layer be ultra-high performance concrete, according to parts by weight, including following components:
585 parts of ordinary portland cement, 90 parts of silicon ash, 778 parts of river sand, 946 parts of hematite, gathers at 270 parts of fine heavy pearl
2.2 parts of alcohol fibers, 225 parts of steel fibre, 27 parts of water-reducing agent, 178 parts of water.
Preparation method:
(1) ordinary portland cement, fine heavy pearl, silicon ash, river sand and hematite are taken, mixing gelling is uniformly mixing to obtain
Material；
(2) water-reducing agent is added in Xiang Shangshu epoxy glue gel material and water is uniformly mixing to obtain mixture slurry；
(3) vinal and steel fibre are added in Xiang Shangshu mixture slurry, be uniformly mixed to get.
(4) it is poured protective layer, and is poured sacrificial layer again after the completion of conserving, is conserved.
Embodiment 2
Wall is protected in a kind of nuclear leakage, including sacrificial layer and the protective layer for being wrapped in sacrificial layer outer surface, in the present embodiment
Protective layer be ultra-high performance concrete, according to parts by weight, including following components:
550 parts of ordinary portland cement, 85 parts of silicon ash, 750 parts of river sand, 900 parts of hematite, gathers at 250 parts of fine heavy pearl
0.5 part of alcohol fibers, 180 parts of steel fibre, 17 parts of water-reducing agent, 150 parts of water.
Preparation method:
(1) ordinary portland cement, fine heavy pearl, silicon ash, river sand and hematite are taken, mixing gelling is uniformly mixing to obtain
Material；
(2) water-reducing agent is added in Xiang Shangshu epoxy glue gel material and water is uniformly mixing to obtain mixture slurry；
(3) vinal and steel fibre are added in Xiang Shangshu mixture slurry, be uniformly mixed to get.
(4) it is poured protective layer, and is poured sacrificial layer again after the completion of conserving, is conserved.
Embodiment 3
Wall is protected in a kind of nuclear leakage, including sacrificial layer and the protective layer for being wrapped in sacrificial layer outer surface, in the present embodiment
Protective layer be ultra-high performance concrete, according to parts by weight, including following components:
600 parts of ordinary portland cement, 300 parts of fine heavy pearl, 100 parts of silicon ash, 800 parts of river sand, 980 parts of hematite,
3 parts of vinal, 240 parts of steel fibre, 30 parts of water-reducing agent, 190 parts of water.
Preparation method:
(1) ordinary portland cement, fine heavy pearl, silicon ash, river sand and hematite are taken, mixing gelling is uniformly mixing to obtain
Material；
(2) water-reducing agent is added in Xiang Shangshu epoxy glue gel material and water is uniformly mixing to obtain mixture slurry；
(3) vinal and steel fibre are added in Xiang Shangshu mixture slurry, be uniformly mixed to get.
(4) it is poured protective layer, and is poured sacrificial layer again after the completion of conserving, is conserved.
Comparative example 1
Wall is protected in a kind of nuclear leakage, including sacrificial layer and the protective layer for being wrapped in sacrificial layer outer surface, in this comparative example 1
Protective layer be ultra-high performance concrete, according to parts by weight, including following components:
585 parts of ordinary portland cement, 270 parts of fine heavy pearl, 90 parts of silicon ash, 778 parts of river sand, 946 parts of hematite, steel
225 parts of fiber, 27 parts of water-reducing agent, 178 parts of water.
Preparation method:
(1) ordinary portland cement, fine heavy pearl, silicon ash, river sand and hematite are taken, mixing gelling is uniformly mixing to obtain
Material；
(2) water-reducing agent is added in Xiang Shangshu epoxy glue gel material and water is uniformly mixing to obtain mixture slurry；
(3) steel fibre is added in Xiang Shangshu mixture slurry, be uniformly mixed to get.
(4) it is poured protective layer, and is poured sacrificial layer again after the completion of conserving, is conserved.
Comparative example 2
Wall is protected in a kind of nuclear leakage, including sacrificial layer and the protective layer for being wrapped in sacrificial layer outer surface, in this comparative example 2
Protective layer be ultra-high performance concrete, according to parts by weight, including following components:
585 parts of ordinary portland cement, 90 parts of silicon ash, 778 parts of river sand, 946 parts of hematite, gathers at 270 parts of fine heavy pearl
2.2 parts of alcohol fibers, 27 parts of water-reducing agent, 178 parts of water.
Preparation method:
(1) ordinary portland cement, fine heavy pearl, silicon ash, river sand and hematite are taken, mixing gelling is uniformly mixing to obtain
Material；
(2) water-reducing agent is added in Xiang Shangshu epoxy glue gel material and water is uniformly mixing to obtain mixture slurry；
(3) vinal is added in Xiang Shangshu mixture slurry, be uniformly mixed to get.
(4) it is poured protective layer, and is poured sacrificial layer again after the completion of conserving, is conserved.
Performance detection:
Resistance to compression of its 28d respectively under room temperature, 600 DEG C, 800 DEG C of environment is tested to above-described embodiment 1-3 and comparative example 1-2
Intensity.Following table one is the test result of embodiment 1-3 and comparative example 1-2.
One test result of table (28d compression strength)
Can be obtained by upper one result of table, ultra-high performance concrete obtained by 1-3 of the embodiment of the present invention, 28d intensity room temperature,
It shows as acutely declining after slightly improving under 400 DEG C and 800 DEG C of environment.Compared to the 28d compression strength under room temperature environment, 400
28d compression strength under DEG C environment slightly improves；And the 28d compression strength under 800 DEG C of environment is 30% left side under room temperature environment
The right side, but still substantially meet bearing requirements.From the test result analysis of comparative example 1-2, vinal proposes compression strength
Height effect is obvious not as good as steel fibre, but its 28d compression strength is not significantly different under 800 DEG C of environment.In addition, mixing polyethylene again
Alcohol fiber and steel fibre can effectively improve the military service performance of ultra-high performance concrete at high temperature.
The present invention combines ferrosilicon matter sacrificial concrete with disclosed ultra-high performance concrete, and nuclear leakage protection is made
Wall produces nucleus leakage defense device using the wall, as shown in Figure 1, including pressure vessel 1, sacrificial layer 2 and protective layer
3, which can be efficiently applied to the reactor pit plot structure under pressure vessel, avoid the occurrence of between sacrificial concrete and support construction
High melting metal layer Lack of support and the case where cause overall system architecture to destroy, alleviate transient heat load, simplify reactor core trapping
Device further prevents the leakage of reactor core fusant from structure.
Claims (10)
1. wall is protected in a kind of nuclear leakage, which is characterized in that including sacrificial layer and the protective layer for being wrapped in sacrificial layer outer surface, institute
The sacrificial layer stated is made of ferrosilicon matter sacrificial concrete material, and the protective layer is made of ultra-high performance concrete material, institute
The ultra-high performance concrete material stated mainly is made of the raw material of following weight ratio:
550-600 parts of ordinary portland cement, heavy pearl 250-300 parts fine, 85-100 parts of silicon ash, 750-800 parts of river sand, red iron
900-980 parts of ore, 0.5-3 parts of vinal, 180-240 parts of steel fibre, 18-30 parts of water-reducing agent, 150-190 parts of water.
2. wall is protected in nuclear leakage according to claim 1, which is characterized in that the ordinary portland cement is
PII52.5 grades of ordinary portland cements, the fine heavy pearl is in global shape, continuous ionic exchange, ultra-fine, solid, wherein
SiO2Content is 50%-54%, Al2O3Content is 20-25%, Fe2O3Content is 4-5%, CaO content 12-14%.
3. wall is protected in nuclear leakage according to claim 1, which is characterized in that SiO in the silicon ash2Content be greater than etc.
In 95%, specific surface area is not less than 20000m2/kg。
4. wall is protected in nuclear leakage according to claim 1, which is characterized in that the river sand fineness modulus is 1.8, grain
Diameter is 0-5mm, density 2.55-2.70g/cm3。
5. wall is protected in nuclear leakage according to claim 1, which is characterized in that the hematite, particle size range are
0.125mm-4mm, Fe2O3Content is more than or equal to 90%.
6. wall is protected in nuclear leakage according to claim 1, which is characterized in that the vinal is pencil list
Silk, draw ratio are greater than 100, density 0.91g/cm3, fusing point is 160-170 DEG C.
7. wall is protected in nuclear leakage according to claim 1, which is characterized in that the steel fibre is straight steel fibre,
Draw ratio is greater than 60, and tensile strength is more than or equal to 3000MPa.
8. wall is protected in nuclear leakage according to claim 1, which is characterized in that the water-reducing agent is that polycarboxylic acids efficiently subtracts
Aqua.
9. wall is protected in nuclear leakage according to claim 1, which is characterized in that the ultra-high performance concrete material
Preparation method the following steps are included:
(1) ordinary portland cement, fine heavy pearl, silicon ash, river sand and hematite are taken, mixing gelling material is uniformly mixing to obtain
Material；
(2) water-reducing agent is added in Xiang Shangshu epoxy glue gel material and water is uniformly mixing to obtain mixture slurry；
(3) vinal and steel fibre are added in Xiang Shangshu mixture slurry, be uniformly mixed to get.
10. the described in any item nuclear leakage protection walls of claim 1-9 are preventing the application in nuclear leakage.
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| CN201910515235.7A CN110364279A (en) | 2019-06-14 | 2019-06-14 | A kind of nuclear leakage protection wall and its application |
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| CN201910515235.7A CN110364279A (en) | 2019-06-14 | 2019-06-14 | A kind of nuclear leakage protection wall and its application |
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Citations (5)
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|---|---|---|---|---|
| CN102176331A (en) * | 2011-01-28 | 2011-09-07 | 东南大学 | Nuclear power sacrificial concrete prepared from basalt fibers and preparation method thereof |
| KR101233314B1 (en) * | 2011-09-20 | 2013-02-14 | 한국수력원자력 주식회사 | Passive multiple cooling device for the molten corium of a reactor vessel |
| JP6233917B2 (en) * | 2013-06-18 | 2017-11-22 | 株式会社太平洋コンサルタント | Sealing material for water leakage part of damaged container and sealing method using the same |
| CN108455930A (en) * | 2018-02-11 | 2018-08-28 | 东南大学 | A kind of green Cement-base material with ultra-high performance and preparation method thereof using drift-sand |
| CN108840626A (en) * | 2018-07-17 | 2018-11-20 | 南京林业大学 | A kind of novel silicon irony nuclear power expendable material and preparation method thereof |
-
2019
- 2019-06-14 CN CN201910515235.7A patent/CN110364279A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176331A (en) * | 2011-01-28 | 2011-09-07 | 东南大学 | Nuclear power sacrificial concrete prepared from basalt fibers and preparation method thereof |
| KR101233314B1 (en) * | 2011-09-20 | 2013-02-14 | 한국수력원자력 주식회사 | Passive multiple cooling device for the molten corium of a reactor vessel |
| JP6233917B2 (en) * | 2013-06-18 | 2017-11-22 | 株式会社太平洋コンサルタント | Sealing material for water leakage part of damaged container and sealing method using the same |
| CN108455930A (en) * | 2018-02-11 | 2018-08-28 | 东南大学 | A kind of green Cement-base material with ultra-high performance and preparation method thereof using drift-sand |
| CN108840626A (en) * | 2018-07-17 | 2018-11-20 | 南京林业大学 | A kind of novel silicon irony nuclear power expendable material and preparation method thereof |
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| Title |
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| 张亚梅: "《土木工程材料 第5版》", 30 June 2013 * |
| 赵新胜: "《现场材料员岗位通》", 31 May 2016 * |
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Application publication date: 20191022 |
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