CN207409270U - A kind of radiation shielding structure applied to nuclear power station - Google Patents
A kind of radiation shielding structure applied to nuclear power station Download PDFInfo
- Publication number
- CN207409270U CN207409270U CN201721440288.XU CN201721440288U CN207409270U CN 207409270 U CN207409270 U CN 207409270U CN 201721440288 U CN201721440288 U CN 201721440288U CN 207409270 U CN207409270 U CN 207409270U
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- CN
- China
- Prior art keywords
- stainless steel
- nuclear power
- power station
- radiation shielding
- nonmetallic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
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- Casings For Electric Apparatus (AREA)
Abstract
The utility model is related to a kind of radiation shielding structure applied to nuclear power station, including heat reflection plate, narrow air space, stainless steel cladding, non-metallic insulation material, nonmetallic shielding material, wherein, the heat reflection plate is arranged on the one side of the stainless steel cladding；The narrow air space is arranged between the heat reflection plate and the stainless steel cladding；The non-metallic insulation material and the nonmetallic shielding material are closed by sealing in the inside of the stainless steel cladding；Exhaust hole is offered at the top of the stainless steel cladding.The radiation shielding structure of the utility model, surface temperature be can be applied to more than 300 DEG C of peripheries by shielding device, influence of the radiant heat transfer to nonmetallic shielding material is substantially reduced, ensures that the operating temperature of nonmetallic shielding material under accidental conditions within limits, meets radiation shielding requirements.
Description
Technical field
The utility model is related to a kind of radiation shielding structures applied to nuclear power station, and in particular to a kind of used in nuclear power station high temperature
The radiation shielding structure of equipment periphery, can be applied to the equipment such as reactor pressure vessel, steam generator, voltage-stablizer, main pipeline
Periphery.
Background technology
During normal operation, hull-skin temperature is often higher than 300 DEG C, and common borosilicate tree for Nuclear Power Plant Equipment and pipeline
Fat shielding material, fusing point is often at 200 DEG C or so.Often in order to meet radiation shielding requirements, shielding material should lean on as far as possible
Nearly high-temperature service outer surface is, it is necessary to which interior in a limited space drop to the temperature in use of shielding material within limit value.
When using nonmetallic in nuclear island, influence of the accident conditions to nonmetallic materials need to be considered, blocking containment is avoided to follow
Ring melt pit strainer.
Utility model content
The purpose of this utility model is that：A kind of radiation shielding structure applied to nuclear power station is provided, meets hot environment
The requirement of operating mode avoids nonmetallic materials from blocking containment Xun Huan melt pit strainer.
A kind of radiation shielding structure applied to nuclear power station, including heat reflection plate, narrow air space, stainless steel cladding, non-
Metal heat preservation material, nonmetallic shielding material, wherein, the heat reflection plate is arranged on the one side of the stainless steel cladding；It is described
Narrow air space is arranged between the heat reflection plate and the stainless steel cladding；The non-metallic insulation material and the non-gold
Belong to shielding material to be closed in the inside of the stainless steel cladding by sealing；Steam discharge is offered at the top of the stainless steel cladding
Hole.
Preferably, the heat reflection plate is not more than the stainless steel plate of 5mm using thickness, and normal emittance is not more than 0.3.
Preferably, the heat reflection plate is arranged in by the outside on shielding device high temperature surface.
Preferably, the thickness of the narrow air space is less in 10mm.
Preferably, the thickness of the stainless steel cladding is more than 1mm, and housing is connected into using sealing weldering.
Preferably, the diameter of the exhaust hole is not more than 5mm.
Preferably, the non-metallic insulation material is arranged in the inside of the nonmetallic shielding material, and thickness is not more than
30mm, thermal conductivity factor are not more than 0.06w/m.k.
Preferably, the nonmetallic shielding material is not less than 200 DEG C of borosilicate resin shielding material using fusing point.
Compared with prior art, the utility model has the advantages that：
1. a kind of radiation shielding structure applied to nuclear power station provided by the utility model, can be applied to surface temperature is more than
300 DEG C of peripheries by shielding device substantially reduce influence of the radiant heat transfer to nonmetallic shielding material, ensure accidental conditions
Under nonmetallic shielding material operating temperature within limits, meet radiation shielding requirements.
2. a kind of radiation shielding structure applied to nuclear power station provided by the utility model, non-metallic insulation material and Fei Jin
Belong to shielding material to be closed in the inside of stainless steel cladding by sealing, prevent that nonmetallic materials leak outside under accident conditions, avoid blocking up
Fill in containment Xun Huan melt pit strainer.
3. a kind of radiation shielding structure applied to nuclear power station provided by the utility model, it is provided at the top of stainless steel cladding
Spilehole, convenient for stainless steel cladding exhaust gas inside during normal operation.
Description of the drawings
Fig. 1 is the schematic diagram for the radiation shielding structure applied to nuclear power station for meeting the preferred embodiment in the utility model.
Wherein, 1- is by shielding device；
2- heat reflection plates；
3- stainless steel claddings；
The nonmetallic shielding materials of 4-；
5- non-metallic insulation materials；
The narrow air spaces of 6-；
7- gas vents.
Specific embodiment
To enable the above-mentioned purpose of the utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail the utility model.
As shown in Figure 1, the preferred embodiment of the utility model provides a kind of radiation shielding structure applied to nuclear power station,
Including heat reflection plate 2, narrow air space 6, stainless steel cladding 3, non-metallic insulation material 4, nonmetallic shielding material 5, wherein, heat
Reflecting plate 2 is arranged on the one side of stainless steel cladding 3；Narrow air space 6 is arranged between heat reflection plate 2 and stainless steel cladding 3；It is non-
Metal heat preservation material 4 and nonmetallic shielding material 5 are closed by sealing in the inside of stainless steel cladding 3；And in stainless ladle
The top of shell 3 offers exhaust hole 7.
Preferably, heat reflection plate 2 is not more than the stainless steel plate of 5mm using thickness, and normal emittance is not more than 0.3.
Preferably, heat reflection plate 2 is arranged in by the outside on 1 high temperature surface of shielding device.
Preferably, the thickness of narrow air space 6 is less in 10mm.
Preferably, the thickness of stainless steel cladding 3 is more than 1mm, and housing is connected into using sealing weldering.
Preferably, the diameter of exhaust hole 7 is not more than 5mm.
Preferably, non-metallic insulation material 5 is arranged in the inside of nonmetallic shielding material 4, and thickness is not more than 30mm, heat conduction
Coefficient is not more than 0.06w/m.k.
Preferably, nonmetallic shielding material 4 is not less than 200 DEG C of borosilicate resin shielding material using fusing point.
Preferably, nonmetallic shielding material 4 is less than 80mm with by the distance L between shielding device 1.
Compared with prior art, the present embodiment has the advantages that：
A kind of radiation shielding structure applied to nuclear power station provided in this embodiment can be applied to surface temperature more than 300
DEG C by shielding device periphery, substantially reduce influence of the radiant heat transfer to nonmetallic shielding material, ensure under accidental conditions
The operating temperature of nonmetallic shielding material meets radiation shielding requirements within limits.
A kind of radiation shielding structure applied to nuclear power station provided by the utility model, non-metallic insulation material and nonmetallic
Shielding material is closed by sealing in the inside of stainless steel cladding, prevents that nonmetallic materials leak outside under accident conditions, avoid blocking
Containment cycles melt pit strainer.
A kind of radiation shielding structure applied to nuclear power station provided by the utility model is provided at the top of stainless steel cladding small
Stomata, convenient for stainless steel cladding exhaust gas inside during normal operation.
Claims (8)
1. a kind of radiation shielding structure applied to nuclear power station, including heat reflection plate, narrow air space, stainless steel cladding, non-gold
Belong to thermal insulation material, nonmetallic shielding material, wherein,
The heat reflection plate is arranged on the one side of the stainless steel cladding；
The narrow air space is arranged between the heat reflection plate and the stainless steel cladding；
The non-metallic insulation material and the nonmetallic shielding material are closed by sealing in the inside of the stainless steel cladding；
Exhaust hole is offered at the top of the stainless steel cladding.
2. it is applied to the radiation shielding structure of nuclear power station as described in claim 1, which is characterized in that the heat reflection plate uses
Thickness is not more than the stainless steel plate of 5mm, and normal emittance is not more than 0.3.
3. it is applied to the radiation shielding structure of nuclear power station as claimed in claim 2, which is characterized in that the heat reflection plate arrangement
By the outside on shielding device high temperature surface.
4. it is applied to the radiation shielding structure of nuclear power station as described in claim 1, which is characterized in that the narrow air space
Thickness is less in 10mm.
5. it is applied to the radiation shielding structure of nuclear power station as described in claim 1, which is characterized in that the stainless steel cladding
Thickness is more than 1mm, and housing is connected into using sealing weldering.
6. it is applied to the radiation shielding structure of nuclear power station as described in claim 1, which is characterized in that the diameter of the exhaust hole
No more than 5mm.
7. it is applied to the radiation shielding structure of nuclear power station as described in claim 1, which is characterized in that the nonmetallic thermal insulating material
Material is arranged in the inside of the nonmetallic shielding material, and thickness is not more than 30mm, and thermal conductivity factor is not more than 0.06w/m.k.
8. it is applied to the radiation shielding structure of nuclear power station as described in claim 1, which is characterized in that the nonmetallic shielding material
Expect for borosilicate resin shielding material of the fusing point not less than 200 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721440288.XU CN207409270U (en) | 2017-11-01 | 2017-11-01 | A kind of radiation shielding structure applied to nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721440288.XU CN207409270U (en) | 2017-11-01 | 2017-11-01 | A kind of radiation shielding structure applied to nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207409270U true CN207409270U (en) | 2018-05-25 |
Family
ID=62317866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721440288.XU Expired - Fee Related CN207409270U (en) | 2017-11-01 | 2017-11-01 | A kind of radiation shielding structure applied to nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207409270U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-11-01 CN CN201721440288.XU patent/CN207409270U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180525 Termination date: 20181101 |