CN104830269B - A kind of special silicone sealant of nuclear power plant's internal structure and its sealing structure - Google Patents
A kind of special silicone sealant of nuclear power plant's internal structure and its sealing structure Download PDFInfo
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- CN104830269B CN104830269B CN201510246549.3A CN201510246549A CN104830269B CN 104830269 B CN104830269 B CN 104830269B CN 201510246549 A CN201510246549 A CN 201510246549A CN 104830269 B CN104830269 B CN 104830269B
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Abstract
The present invention relates to a kind of special silicone sealant of nuclear power plant's internal structure, include each component of following quality parts ratio：100 parts of 50000cs hydroxy silicon oils；5 10 parts of dimethicone；15 parts of KH550 coupling agents；15 parts of KH560 coupling agents；Fire-retardant 10 35 parts of pulvis；10 20 parts of heavy aluminum oxide；15 30 parts of inorganic filler；15 parts of phenyl tributanoximo silane；5 10 parts of two butanone oximino silane of dimethyl；0.5 1.5 parts of organotin catalysts.A kind of nuclear power plant's internal seal structure, including CV steel plates and concrete walls, in addition to silicone sealant, the junction of the concrete walls and CV steel plates are provided with depression, silicone sealant are provided with depression.The beneficial effects of the invention are as follows：After being subjected to irradiation intergal dose and the LOCA experiments of 60 year phase in longevity of nuclear power station, no efflorescence, degraded, still with good adhesive property and retractility；Simulating inside CV under 66psig (455kPa) pressure, generation lin (25.4mm) relative displacement, can guarantee that good watertight, air-tightness between CV and concrete.
Description
Technical field
The present invention relates to nuclear power field, more particularly to the special silicone sealant of a kind of nuclear power plant's internal structure and its close
The structure of envelope.
Background technology
Containment building (CV) inner side and outer side of nuclear power plant contacts at different level with concrete, in order to prevent moisture
The surface that steel plate contacts with concrete is penetrated into, and then causes the corrosion on CV surfaces, it is necessary to be set in these seam crossings corresponding close
Envelope.For the purposes of preventing moisture from entering between steel plate and concrete in the steel plate concrete structure (such as CA modules) of other classifications
Gap, cause the corrosion of steel facing, it is also desirable to these positions set seal.
Encapsulant on the inside of CV is except disclosure satisfy that the environmental condition under accidental conditions, it is also necessary to ensures it in spy
(such as LOCA accident operating mode, radiation environment etc. is accumulated under fixed environment within 60 years), and efflorescence, degraded do not occur, possesses good bonding
Ability and retractility.In addition, the material should have satisfactory airtight in the displacement for occurring to be assumed during SIT experiments
Property and watertightness, prevent CV surfaces from corrosion failure occurs under extreme operating condition.And in the prior art, it can also meet without appearance
The fluid sealant of all of above demand.
The content of the invention
The present invention is exactly to solve the above problems, and overcomes the sealing problem of nuclear power plant's internal structure in the prior art, this
Invention provides the structure of a kind of special silicone sealant of nuclear power plant's internal structure and its sealing with meet demand.
To achieve these goals, technical scheme is as follows：
The special silicone sealant of a kind of nuclear power plant's internal structure, it is characterised in that including each of following quality parts ratio
Component：
A kind of special silicone sealant of above-mentioned nuclear power plant's internal structure, it is characterised in that the quality parts ratio of each component
For：
A kind of special silicone sealant of above-mentioned nuclear power plant's internal structure, it is characterised in that the quality parts ratio of each component
For：
A kind of special silicone sealant of above-mentioned nuclear power plant's internal structure, it is characterised in that the quality parts ratio of each component
For：
A kind of special silicone sealant of above-mentioned nuclear power plant's internal structure, it is characterised in that the quality parts ratio of each component
For：
A kind of special silicone sealant of above-mentioned nuclear power plant's internal structure, it is characterised in that the quality parts ratio of each component
For：
A kind of nuclear power plant's internal seal structure containing silicone sealant, including CV steel plates and concrete walls, its feature exist
In in addition to silicone sealant, the junction of the concrete walls and CV steel plates is provided with depression, and it is close to be provided with silicone in depression
Sealing.
A kind of above-mentioned nuclear power plant's internal seal structure containing silicone sealant, it is characterised in that the width of the depression
It is highly 30-80mm for 30-80mm.
A kind of above-mentioned nuclear power plant's internal seal structure containing silicone sealant, it is characterised in that the width of the depression
It is highly 50mm for 50mm.
The beneficial effects of the invention are as follows：After being subjected to irradiation intergal dose and the LOCA experiments of 60 year phase in longevity of nuclear power station, no powder
Change, degraded, still with good adhesive property and retractility；Simulation CV inside 66psig (455kPa) pressure under, CV with
1in (25.4mm) relative displacement occurs between concrete, can guarantee that good watertight, air-tightness.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
A kind of special silicone sealant of nuclear power plant's internal structure, include each component of following quality parts ratio：
Embodiment 1：
A kind of special silicone sealant of above-mentioned nuclear power plant's internal structure, the quality parts ratio of each component are：
Embodiment 2：
A kind of special silicone sealant of above-mentioned nuclear power plant's internal structure, the quality parts ratio of each component are：
Embodiment 3：
A kind of special silicone sealant of above-mentioned nuclear power plant's internal structure, the quality parts ratio of each component are：
Embodiment 4：
A kind of special silicone sealant of above-mentioned nuclear power plant's internal structure, the quality parts ratio of each component are：
Embodiment 5：
A kind of special silicone sealant of above-mentioned nuclear power plant's internal structure, the quality parts ratio of each component are：
The encapsulant used inside containment should make have good watertightness between concrete and containment steel facing.
When the SIT that progress pressure conditions are 0.455Mpa (66psig) tests (structural intergrity experiment), it is assumed that between CV and concrete
25.4mm (1in) relative displacement occurs, now requires the encapsulant inside containment under the relative displacement not
Destroy, and the miscellaneous part of surrounding is caused to damage, and ensure certain air-tightness and watertightness.But the encapsulant
Do not require still to keep its air-tightness and watertightness under LOCA operating modes.
Under DBA operating modes, it is desirable to which comminuted destruction does not occur, changes into liquid or drop for sealing and fluid sealant inside CV
Solution, and can ensure that the encapsulant after destroying is remained in foramen primum groove.
When encapsulant outside containment is arranged between CV steel facings and concrete, it is desirable to which it has good water
Close performance.
For installed in the encapsulant of CA modules (between CA steel facings and inner side concrete), it is desirable to which it has good
Watertightness.There is no specific requirement for the elasticity of the encapsulant.
The encapsulant used in the encapsulant and CA modules that are used for containment inner side and outer side, it is desirable to its
Accidental conditions temperature conditionss (10 DEG C (50 °F) to 49 DEG C (120 °F)) can guarantee that functional completeness.In DBA working temperature bars
During part (on the inside of CV 178.5 DEG C (353 °F), on the outside of CV 149 DEG C (300 °F)), do not degrade.
The encapsulant used for CV inside, accumulation irradiation dose maximum is 1.5 × 10 within its 60 years6Rad.For CV
Internal (CA modules) encapsulant, accumulation irradiation dose maximum is 4 × 10 within its 60 years6Rad。
Therefore, the technical requirements more than, encapsulant provided by the invention is by meeting following requirement, there is provided
Nuclear power plant use environment and the sealing material under requiring：
Effect of the invention is that：
1st, research and develop successful FS-LM silicone seals plastic structure caulking material and meet AP1000 design requirements.
2nd, after the product of research and development is subjected to irradiation intergal dose and the LOCA experiments of 60 year phase in longevity of nuclear power station, no efflorescence, degraded,
Still there is good adhesive property and retractility；
3rd, product simulation CV inside 66psig (455kPa) pressure under, 1in occurs between CV and concrete
The relative displacement of (25.4mm), it can guarantee that good watertight, air-tightness；
Referring to Fig. 1, a kind of nuclear power plant's internal seal structure containing silicone sealant, including CV steel plates 100 and concrete
The junction of wall 200, in addition to silicone sealant 300, concrete walls 200 and CV steel plates 100 is provided with depression 400, depression 400
Inside it is provided with silicone sealant 300.
The width of depression 400 is 30-80mm, is highly 30-80mm.
In one of preferred embodiment of the present invention, 400 width of being recessed is 50mm, is highly 50mm.
The beneficial effects of the invention are as follows：After being subjected to irradiation intergal dose and the LOCA experiments of 60 year phase in longevity of nuclear power station, no powder
Change, degraded, still with good adhesive property and retractility；Simulation CV inside 66psig (455kPa) pressure under, CV with
1in (25.4mm) relative displacement occurs between concrete, can guarantee that good watertight, air-tightness.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.
Claims (9)
1. the special silicone sealant of a kind of nuclear power plant's internal structure, it is characterised in that include each group of following quality parts ratio
Point：
2. the special silicone sealant of a kind of nuclear power plant's internal structure according to claim 1, it is characterised in that each component
Quality parts ratio is：
3. the special silicone sealant of a kind of nuclear power plant's internal structure according to claim 1, it is characterised in that each component
Quality parts ratio is：
4. the special silicone sealant of a kind of nuclear power plant's internal structure according to claim 1, it is characterised in that each component
Quality parts ratio is：
5. the special silicone sealant of a kind of nuclear power plant's internal structure according to claim 1, it is characterised in that each component
Quality parts ratio is：
6. the special silicone sealant of a kind of nuclear power plant's internal structure according to claim 1, it is characterised in that each component
Quality parts ratio is：
7. a kind of nuclear power plant's internal seal structure of the silicone sealant containing claim 1, including CV steel plates and concrete walls,
Characterized in that, also including silicone sealant, the junction of the concrete walls and CV steel plates is provided with depression, and be recessed interior set
There is silicone sealant.
8. a kind of nuclear power plant's internal seal structure of the silicone sealant containing claim 1 according to claim 7, it is special
Sign is that the width of the depression is 30-80mm, is highly 30-80mm.
9. a kind of nuclear power plant's internal seal structure of the silicone sealant containing claim 1 according to claim 7, it is special
Sign is that the width of the depression is 50mm, is highly 50mm.
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| CN201510246549.3A CN104830269B (en) | 2015-05-14 | 2015-05-14 | A kind of special silicone sealant of nuclear power plant's internal structure and its sealing structure |
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| CN201510246549.3A CN104830269B (en) | 2015-05-14 | 2015-05-14 | A kind of special silicone sealant of nuclear power plant's internal structure and its sealing structure |
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| CN104830269A CN104830269A (en) | 2015-08-12 |
| CN104830269B true CN104830269B (en) | 2018-01-12 |
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| CN111534273A (en) * | 2020-05-25 | 2020-08-14 | 佛山市元通胶粘实业有限公司 | Organosilicon flame-retardant sealant for buildings |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1438289A (en) * | 2003-03-06 | 2003-08-27 | 成都硅宝科技实业有限责任公司 | Neutral silicone fire-retardent sealing glue and its preparing method |
| CN1687288A (en) * | 2005-04-13 | 2005-10-26 | 成都硅宝科技实业有限责任公司 | Flameproofing silicone structure sealant and mfg. method thereof |
| CN101985550A (en) * | 2010-11-05 | 2011-03-16 | 江苏天源华威电气集团公司 | One-component room temperature vulcanizing silicone fireproof sealant and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122239B (en) * | 2011-11-18 | 2014-06-18 | 镇江亿致能源科技孵化器有限公司 | High-density room temperature vulcanization two-component silicone sealant used in nuclear power station and preparation process thereof |
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- 2015-05-14 CN CN201510246549.3A patent/CN104830269B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1438289A (en) * | 2003-03-06 | 2003-08-27 | 成都硅宝科技实业有限责任公司 | Neutral silicone fire-retardent sealing glue and its preparing method |
| CN1687288A (en) * | 2005-04-13 | 2005-10-26 | 成都硅宝科技实业有限责任公司 | Flameproofing silicone structure sealant and mfg. method thereof |
| CN101985550A (en) * | 2010-11-05 | 2011-03-16 | 江苏天源华威电气集团公司 | One-component room temperature vulcanizing silicone fireproof sealant and preparation method thereof |
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