CN109616227A - A kind of disperse filled composite function metallic insulation - Google Patents

A kind of disperse filled composite function metallic insulation Download PDF

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Publication number
CN109616227A
CN109616227A CN201811475508.1A CN201811475508A CN109616227A CN 109616227 A CN109616227 A CN 109616227A CN 201811475508 A CN201811475508 A CN 201811475508A CN 109616227 A CN109616227 A CN 109616227A
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China
Prior art keywords
shielding layer
socket
outer box
metallic
disperse
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Granted
Application number
CN201811475508.1A
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Chinese (zh)
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CN109616227B (en
Inventor
周高斌
邱天
罗英
谢国福
王小彬
李玉光
邱阳
杨志海
张亚斌
马姝丽
杨敏
陈海波
杨立才
董元元
王昫心
曾鹏
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Nuclear Power Institute of China
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Nuclear Power Institute of China
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Classifications

    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21CNUCLEAR REACTORS
    • G21C11/00Shielding structurally associated with the reactor
    • G21C11/08Thermal shields; Thermal linings, i.e. for dissipating heat from gamma radiation which would otherwise heat an outer biological shield ; Thermal insulation
    • G21C11/083Thermal shields; Thermal linings, i.e. for dissipating heat from gamma radiation which would otherwise heat an outer biological shield ; Thermal insulation consisting of one or more metallic layers
    • G21C11/085Thermal shields; Thermal linings, i.e. for dissipating heat from gamma radiation which would otherwise heat an outer biological shield ; Thermal insulation consisting of one or more metallic layers consisting exclusively of several metallic layers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • F16L59/02Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/029Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • F16L59/08Means for preventing radiation, e.g. with metal foil
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21CNUCLEAR REACTORS
    • G21C11/00Shielding structurally associated with the reactor
    • G21C11/02Biological shielding ; Neutron or gamma shielding
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21CNUCLEAR REACTORS
    • G21C11/00Shielding structurally associated with the reactor
    • G21C11/02Biological shielding ; Neutron or gamma shielding
    • G21C11/028Biological shielding ; Neutron or gamma shielding characterised by the form or by the material
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Abstract

The invention discloses a kind of disperse filled composite function metallic insulations, including heat preservation outer box and the gamma shielding layer, boron carbide powder and the metallic reflection paillon that are seated in inside heat preservation outer box, gamma shielding layer is all made of inorganic mask material with metallic character and is made;Filling sequence is successively on insulation layer thickness section are as follows: keeps the temperature the inner hulls of outer box, inside gamma shielding layer, metallic reflection paillon, outside gamma shielding layer and the Shell Plate for keeping the temperature outer box, boron carbide powder even dispersion is in the cavity between adjacent two layers metal foil;Metallic reflection paillon is in positive and negative double ball-and-socket corrugated shapes of the arrangement of regular intervals in length and breadth or the positive and negative triangle corrugated shape or chocolate corrugated shape of mechanical periodicity, and adjacent two layers metallic reflection paillon is with the formula interfolded backwards of positive and negative ball-and-socket vertex opposite vertexes.The present invention provides a kind of not only composition metal insulating layers with incubation and thermal insulation function but also with screen radiation shield function, can be on active service under hyperthermia radiation environment without replacing the long-lived phase.

Description

A kind of disperse filled composite function metallic insulation
Technical field
The present invention relates to nuclear industry technical fields, and in particular to a kind of disperse filled composite function metallic insulation.
Background technique
When nuclear reactor operates normally, inside core level-one main equipment and pipeline to flow high temperature, high pressure, high radioactivity cold But medium needs to be thermally shielded in equipment and pipeline external surface setting insulating layer, reduces thermal loss, while being also required in core one Shielding material is arranged to reduce the dose of radiation of equipment periphery in grade equipment and pipeline external, facilitates the inspection of personnel's in-service period Maintenance.Currently, the first device and pipeline external of nuclear reactor coolant system usually all use metallic insulation, but this gold Belong to insulating layer and only have incubation and thermal insulation function, does not have function of shielding, such as: patent US3904379A, CN1159062A, The metallic insulation that CN203131332U is provided does not have function of shielding.But with the development of nuclear power technology, both bands are protected Warm heat insulating function, the demand of nuclear leve equipment and pipe insulating layer with function of shielding is more obvious again, patent CN103174912B A kind of compound insulating layer with function of shielding is respectively provided with CN103971761A, but the shielding material of the two all uses Boracic silicone resin or the nonmetallic organic material such as Boron-containing-PE plate or boracic epoxy resin board, this kind of nonmetallic organic screen material The Applicable temperature range of material is generally not above 200 DEG C, even under the working environment lower than 200 DEG C, for organic resin The inherent characteristic of material itself limits, and this kind of nonmetallic organic shielding material will necessarily generate under high temperature, prolonged use Ageing of performance causes its function of shielding to be gradually reduced and even loses, and a service life will not be very long, is being used for the super-long service life phase Nuclear power plant and when nuclear-plant (such as 60 year phase in longevity), be necessarily required to periodic replacement to guarantee that its shielding properties meets always It is required that.
Summary of the invention
The technical problems to be solved by the present invention are: the composition metal insulating layer with radiation shield function is adopted in the prior art It is made of organic material, high temperature resistance is poor, and service life is short, needs to regularly replace, the present invention provides solve the above problems A kind of disperse filled composite function metallic insulation.
The present invention is achieved through the following technical solutions:
A kind of disperse filled composite function metallic insulation, including heat preservation outer box and the inside being seated in inside heat preservation outer box Gamma shielding layer, outside gamma shielding layer, boron carbide powder and metallic reflection paillon, the inside gamma shielding layer and outside gal Horse shielded layer is all made of inorganic mask material with metallic character and is made;Filling sequence on insulation layer thickness section is successively Are as follows: inner hull, inside gamma shielding layer, several layers metallic reflection paillon, outside gamma shielding layer and the heat preservation for keeping the temperature outer box are outer The Shell Plate of box, the boron carbide powder even dispersion is in the cavity between adjacent two layers metal foil;Several layers metal is anti- Penetrate paillon it is whole by positive ball-and-socket and reversed ball-and-socket, regular intervals arrange and form corrugated shape in length and breadth, and adjacent two layers metal is anti- Penetrate backwards formula interfolded of the paillon with the vertex of positive ball-and-socket to the vertex of reversed ball-and-socket.
The heat preservation outer box of metallic insulation provided by the invention can be inner hull towards heat-producing device outer wall, be also possible to Shell Plate can be fabricated to plate according to the shape of equipment surface towards heat-producing device outer wall, the monnolithic case of metallic insulation Shape, tubular, spheric.The filling number of plies of metallic reflection paillon depending on the heat preservation of heat-producing device and radiation shielding needs, Spacing between adjacent two layers metallic reflection paillon can be adjusted by controlling the height of positive ball-and-socket and reversed ball-and-socket, to reach To the optimization of metallic reflective foil packing course number and heat insulating effect on chip.Must be when the filling of adjacent two layers metallic reflective foil piece The formula interfolded backwards of positive and negative ball-and-socket apexes contact opposite vertexes guarantees that the contact between adjacent two layers metallic reflection paillon is entirely Point contact, it is therefore an objective to reduce metal contact area, reduce the loss of metal thermal contact conductance.
Further, the heat preservation outer box are the side coverboards by inner hull, Shell Plate and surrounding by being formed by welding one A closed outer box, the side coverboard of the inner hull, Shell Plate and surrounding are all made of the austenitic stainless steel thin plate in bimirror face It is made.
Further, Co content mass percent≤1% of the austenitic stainless steel thin plate, in reducing be subjected to as far as possible Activation dosage level after son and gamma irradiation.
Further, the inside gamma shielding layer and outside gamma shielding layer are all made of stereotype or tungsten alloy plate is made.
Further, the metallic reflection paillon is pressed between regularity in length and breadth using ultra-thin austenitic stainless steel foil Every the positive ball-and-socket of arrangement and the corrugated shape of reversed ball-and-socket.
Further, the ultra-thin austenitic stainless steel foil is made through solution annealing, double-sided light processing, and Co content Mass percent≤1%.
Ultra-thin austenitic stainless steel foil for pressed metal reflective foil should be handled with solution annealing, double-sided light, And the control of Co content is being not more than 1% level, the purpose is to: 1) plasticity and toughness for enhancing stainless steel foil band prevent from being pressed into It is torn when shape;2) surface smoothness of stainless steel foil band is improved to reduce the slin emissivity of foil, enhances metallic reflective foil Radiation reflective ability of the piece to heat;3) it reduces as far as possible and is subjected to the activation dosage level after neutron and gamma irradiation.
The present invention has the advantage that and the utility model has the advantages that
1, composition metal insulating layer of the present invention is to increase neutron and gamma in the inside of metallic insulation structure Shielding material had not only remained the excellent incubation and thermal insulation function of metallic insulation, but also had increased the spoke of shielding neutron and gamma ray newly Function of shielding is penetrated, and neutron shield layer uses boron carbide powder, the gamma shielding layer in interior outside uses stereotype or tungsten alloy plate, Above-mentioned three kinds of shielding materials are all inorganic mask materials with metallic character, and high temperature resistant, radiation resistance, chemical and physical properties are steady It is fixed, can the phenomenon that use is without aging and shielding properties decline under high temperature, high radiation environment the long-lived phase, do not need Periodic replacement, overcomes nonmetallic organic shielding material used in patent CN103174912B and CN103971761A well Non-refractory, the easy to aging, deficiency that need to regularly replace;
2, the ripple struction for the single-layer metal reflective foil loaded inside composition metal insulating layer of the present invention and more The stacked configuration of layer metallic reflection paillon can effectively reduce radiant heat transfer amount and metal thermal contact conductance heat output, improve compound The heat insulating effect of type metallic insulation.Moreover, positive and negative double ball-and-socket ripple knots of metallic reflective foil on piece of the present invention Structure is into being intervally arranged in length and breadth for regularity in entire plane, is evenly distributed in all directions, can not have to distinguish ripple direction It is rolled into round tube shape and spherical shape, easily extremely to facilitate the monnolithic case of entire composite metal insulating layer according to setting Standby surface shape is fabricated to tubular or spheric.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is composition metal heat insulation layer structure schematic diagram of the present invention;
Fig. 2 is the top plan view structure of the metallic reflection paillon in Fig. 1;
Fig. 3 is the A-A cross-section structure of the metallic reflection paillon in Fig. 2.
Label and corresponding parts title in attached drawing: 1- inner hull, 2- Shell Plate, the side 3- coverboard, the inside 4- gamma Shielded layer, 5- boron carbide powder, gamma shielding layer on the outside of 6-, 7- metallic reflection paillon, 8- forward direction ball-and-socket, the reversed ball-and-socket of 9-.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made For limitation of the invention.
Embodiment
As shown in Figure 1, composition metal insulating layer of the present invention is by heat preservation outer box and is seated in inside heat preservation outer box Inside gamma shielding layer 4, outside gamma shielding layer 6, boron carbide powder 5 and metallic reflection paillon 7 are constituted, and each part is cut in thickness Filling sequence on face is successively are as follows: keeps the temperature the inner hull 1, inside gamma shielding layer 4, multiple layer metal reflective foil 7, carbonization of outer box Boron powder 5, outside gamma shielding layer 6, the Shell Plate 2 for keeping the temperature outer box, wherein 5 even dispersion of boron carbide powder is in adjacent two layers gold Belong in the cavity between reflective foil 7.The monnolithic case of this composition metal insulating layer with function of shielding can be according to equipment The shape on surface is fabricated to plate shaped, tubular, spheric, and the high temperature range used generally can be to 450 DEG C, heat insulating ability It can generally accomplish that Equivalent Thermal Conductivities are less than 0.075W/ (m.K), service life expection can be even longer by 60 years.
It keeps the temperature outer box and the welding manners such as spot welding or discontinuous welding is passed through by the side coverboard 3 of inner hull 1, Shell Plate 2 and surrounding A closed outer box are constituted, material is manufactured using austenitic stainless steel thin plate, and austenitic stainless steel thin plate need to carry out two-sided throwing Light processing reaches the requirement of bimirror face, and the Co content in stainless sheet steel should control and be not more than 1% level, to drop as far as possible The low activation dosage level being subjected to after neutron and gamma irradiation.The thickness of inner hull 1 and Shell Plate 2 generally 0.6mm~ Between 1.0mm, and the thickness of side coverboard 3 can be equal with the thickness of the thickness of inner hull 1 or Shell Plate 2, but in view of protecting The structural strength of warm outer box can also be slightly thicker than the thickness of inner hull 1 and the thickness of Shell Plate 2, but is usually no more than 2mm, It, can be in the case where keeping coverboard 3 thickness in side constant, by side coverboard edge in order to further enhance the intensity of heat preservation outer box Incubation chamber thickness direction inwardly suppresses equally spaced triangular groove or semi-cylindrical recesses, to increase the bending resistance of side coverboard Section modulus, so as to improve the overall structure stiffness and strength of incubation chamber.
Boron carbide powder 5 uses the pure grade boron carbide powder of core, uniformly more by the cavity formed between metallic reflection paillon 7 It is full to dissipate filling, plays the role of shielding neutron.Boron carbide powder fills out the relative density general control after filling 50% or so.
Inside gamma shielding layer 4 and outside gamma shielding layer 6 use stereotype or tungsten alloy plate, and operating temperature is lower than 327 DEG C Shi Caiyong stereotype uses tungsten alloy plate when being higher than 327 DEG C, the thickness of inside gamma shielding layer 4 and outside gamma shielding layer 6 according to Depending on radiation shielding needs.
Metallic reflection paillon 7 is manufactured using ultra-thin austenitic stainless steel foil, thickness generally in 0.05mm~1.0mm, And positive and negative double ball-and-socket corrugated shapes of Fig. 2 and regular intervals in length and breadth shown in Fig. 3 arrangement are pressed into, and with two positive ball-and-sockets Loop distribution at equal intervals is carried out with two reversed ball-and-sockets for a cycling element for a cycling element.Positive ball-and-socket and reversed The depth of ball-and-socket is generally in 5mm~15mm range, preferably in 5~10mm;Adjacent forward direction ball-and-socket, adjacent reversed ball-and-socket and adjacent The general bacterium of spacing between positive ball-and-socket and reversed ball-and-socket is in 30mm~90mm range.The filling number of plies root of metallic reflection paillon 7 Depending on the heat preservation demand of heat-producing device, the spacing between adjacent two layers metallic reflection paillon 7 can be by controlling positive and negative ball-and-socket Height adjust, to reach the optimization that metallic reflection paillon 7 loads the number of plies and heat insulating effect.Adjacent two layers metal is anti- Penetrate when paillon 7 loads must be positive ball-and-socket 8 vertex to the vertex of reversed ball-and-socket 9 backwards to formula interfolded, guarantee adjacent Contact between double layer of metal reflective foil 7 is point contact entirely, it is therefore an objective to reduce metal contact area, reduce metal thermal contact conductance Loss.Ultra-thin austenitic stainless steel foil for pressed metal reflective foil 7 is handled through solution annealing and double-sided light, and The control of Co content is being not more than 1% level, the purpose is to: 1) plasticity and toughness for enhancing stainless steel foil band are prevented in compression moulding It is torn;2) surface smoothness of stainless steel foil band is improved to reduce the slin emissivity of foil, and enhancing metallic reflection paillon 7 is right The radiation reflective ability of heat;3) it reduces as far as possible and is subjected to the activation dosage level after neutron and gamma irradiation.
In addition, metallic reflection paillon can also be pressed into the positive and negative triangle corrugated shape or chocolate of existing mechanical periodicity Metallic reflection paillon and this hair referring to above content, after compression moulding is arranged in corrugated shape, depth and corresponding spacing parameter The structures such as bright heat preservation outer box and neutron shield layer, gamma shielding layer, demarcation plate are with the use of also can reach preferable heat preservation effect Fruit.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include Within protection scope of the present invention.

Claims (6)

1. a kind of disperse filled composite function metallic insulation, which is characterized in that including heat preservation outer box and be seated in heat preservation outer box Internal inside gamma shielding layer (4), outside gamma shielding layer (6), boron carbide powder (5) and metallic reflection paillon (7), it is described Inside gamma shielding layer (4) and outside gamma shielding layer (6) are all made of inorganic mask material with metallic character and are made;It is protecting Filling sequence on warm layer thickness x cross sectional is successively are as follows: keeps the temperature inner hull (1), inside gamma shielding layer (4), the several layers gold of outer box Belong to reflective foil (7), outside gamma shielding layer (6) and the Shell Plate (2) for keeping the temperature outer box, the boron carbide powder (5) is uniform more It is dispersed in the cavity between adjacent two layers metal foil (7);Several layers metallic reflection paillon (7) it is whole by positive ball-and-socket (8) and Reversed ball-and-socket (9) in length and breadth arrange to form corrugated shape by regular intervals, and adjacent two layers metallic reflection paillon (7) is with positive ball-and-socket (8) backwards formula interfolded of the vertex to the vertex of reversed ball-and-socket (9).
2. a kind of disperse filled composite function metallic insulation according to claim 1, which is characterized in that outside the heat preservation Box is the side coverboard (3) by inner hull (1), Shell Plate (2) and surrounding by the way that a closed outer box are formed by welding, described interior The austenitic stainless steel thin plate that the side coverboard (3) of coverboard (1), Shell Plate (2) and surrounding is all made of bimirror face is made.
3. a kind of disperse filled composite function metallic insulation according to claim 2, which is characterized in that the austenite Co content mass percent≤1% of stainless sheet steel.
4. a kind of disperse filled composite function metallic insulation according to claim 1, which is characterized in that the inside gal Horse shielded layer (4) and outside gamma shielding layer (6) are all made of stereotype or tungsten alloy plate is made.
5. a kind of disperse filled composite function metallic insulation according to claim 1, which is characterized in that the metal is anti- Penetrate the positive ball-and-socket (8) and instead that paillon (7) are pressed into the arrangement of regular intervals in length and breadth using ultra-thin austenitic stainless steel foil To the corrugated shape of ball-and-socket (9).
6. a kind of disperse filled composite function metallic insulation according to claim 5, which is characterized in that described ultra-thin Austria Family name's body stainless steel foil band is made through solution annealing, double-sided light processing, and Co content mass percent≤1%.
CN201811475508.1A 2018-12-04 2018-12-04 Dispersion filling composite function metal heat preservation Active CN109616227B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112918032A (en) * 2021-02-09 2021-06-08 上海核工程研究设计院有限公司 Heat insulation part for nuclear energy device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303553A (en) * 1978-09-28 1981-12-01 Nippon Asbestos Co., Ltd. Neutron-protection heat insulating material
CN103174912A (en) * 2013-01-14 2013-06-26 上海核工程研究设计院 Nuclear power plant device and composite type insulating layer used for pipeline
CN103971761A (en) * 2014-05-06 2014-08-06 中广核工程有限公司 Metal reflection type insulating plate for radiation shielding in nuclear power station
CN105065859A (en) * 2015-07-27 2015-11-18 中国核动力研究设计院 Metallic reflection type insulating layer for nuclear class device and pipe
CN205487367U (en) * 2015-12-31 2016-08-17 天津新星科能源技术有限公司 Nuclear power station intelligence metal heated board
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
CN207337946U (en) * 2017-10-27 2018-05-08 镇江奥特氟科技有限公司 A kind of radiant panel of high-efficiency shielding neutron gamma radiation
CN207337944U (en) * 2017-10-27 2018-05-08 镇江奥特氟科技有限公司 A kind of radiant panel of high-performance shielding neutron gamma radiation

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303553A (en) * 1978-09-28 1981-12-01 Nippon Asbestos Co., Ltd. Neutron-protection heat insulating material
CN103174912A (en) * 2013-01-14 2013-06-26 上海核工程研究设计院 Nuclear power plant device and composite type insulating layer used for pipeline
CN103971761A (en) * 2014-05-06 2014-08-06 中广核工程有限公司 Metal reflection type insulating plate for radiation shielding in nuclear power station
CN105065859A (en) * 2015-07-27 2015-11-18 中国核动力研究设计院 Metallic reflection type insulating layer for nuclear class device and pipe
CN205487367U (en) * 2015-12-31 2016-08-17 天津新星科能源技术有限公司 Nuclear power station intelligence metal heated board
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
CN207337946U (en) * 2017-10-27 2018-05-08 镇江奥特氟科技有限公司 A kind of radiant panel of high-efficiency shielding neutron gamma radiation
CN207337944U (en) * 2017-10-27 2018-05-08 镇江奥特氟科技有限公司 A kind of radiant panel of high-performance shielding neutron gamma radiation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
戴龙泽 等: "乏燃料贮运用铝基碳化硼复合材料的屏蔽性能计算", 《物理学报》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112918032A (en) * 2021-02-09 2021-06-08 上海核工程研究设计院有限公司 Heat insulation part for nuclear energy device

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