CN202258393U - Storage and transport container of primary neutron source components for starting nuclear reactor - Google Patents
Storage and transport container of primary neutron source components for starting nuclear reactor Download PDFInfo
- Publication number
- CN202258393U CN202258393U CN2011203315931U CN201120331593U CN202258393U CN 202258393 U CN202258393 U CN 202258393U CN 2011203315931 U CN2011203315931 U CN 2011203315931U CN 201120331593 U CN201120331593 U CN 201120331593U CN 202258393 U CN202258393 U CN 202258393U
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- Prior art keywords
- neutron source
- nuclear reactor
- source parts
- starts
- neutron
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- Expired - Lifetime
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 42
- 239000002184 metal Substances 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 16
- 210000004907 gland Anatomy 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 239000012188 paraffin wax Substances 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000003749 cleanliness Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model discloses a storage and transport container of primary neutron source components for starting a nuclear reactor. The container adopts a columnar structure and comprises an outer enclosure, an inner enclosure, lifting lugs and a support, wherein the support and the lifting lugs are mounted on the outer enclosure; a neutron shielding layer made from a hydrogeneous material and a Gamma shielding layer made of metal are arranged between the outer enclosure and the inner enclosure; the inner enclosure comprises two layers of metal tubes for accommodating the neutron source components, as well as an outer sleeve metal tube; the metal tubes are in flexible connection; the inner enclosure and the outer enclosure are integrally welded; and a gland is mounted at the end part of the inner enclosure. The storage and transport container of the primary neutron source components for starting the nuclear reactor has the advantages of simple structure, good shielding property, and impact and extrusion resistance, ensures cleanliness of the neutron source components and is specially suitable for the primary neutron source components for starting the nuclear reactor.
Description
Technical field
The utility model relates to radiomaterial safe storage transportation technology field, and particularly a kind of nuclear reactor starts the storage cask with neutron source parts.
Background technology
In the reactor start-up of nuclear power station, all must use isotope neutron source to do initial start-up.And the neutron source radioactivity is strong, all must guarantee neutron source and personnel's safety in storage, transportation and the use.
Do not start relevant report both at home and abroad at present with a neutron source parts storage cask to nuclear reactor; About the relevant report that has of the security protection container of neutron source, the security protection container of neutron source generally is to add heavy aggregate concrete shield by the metal bucket that fills with boric acid aqueous solution to constitute.U.S.'s design and the actual multi-usage of using
252Cf neutron source shielding container also has certain representativeness, the rigid structure that the shell of this container is processed with one inch steel plate, double as
252The external shielding layer of the secondary gamma ray in Cf source.Upper and lower truncated cone all connects with flange between right cylinder and the upper and lower base plate.
Existing above-mentioned two kinds of representative containers all are the containers that is used to store transportation neutron source; And the nuclear reactor startup needs the neutron source parts; After completing, the neutron source parts all to carry out fitting operation in the erecting stage; But because the neutron source parts have stronger radioactivity; Therefore installation process is that close control after operating personnel's protection or neutron source parts are installed all can not well be guaranteed at the scene, therefore is badly in need of a kind of nuclear reactor that is specially adapted for of design and starts the safe and reliable storage cask with neutron source parts.
Summary of the invention
The utility model has overcome deficiency of the prior art, provide a kind of simple in structure, shielding good, the nuclear reactor that is specially adapted for of shock resistance and extruding, assurance neutron source cleaning elements degree starts the storage cask with neutron source parts.
In order to solve the problems of the technologies described above, the utility model is realized through following technical scheme:
A kind of nuclear reactor starts the storage cask with neutron source parts; This container is a column structure; It comprises outer envelope, interior involucrum, hanger, support; Support and hanger are installed on the outer envelope, and the shell of neutron source parts cask is called for short outer envelope, involucrum in the component protection cover of neutron source parts cask is called for short; Be provided with the neutron shield layer of hydrogenous material and the gamma shielding layer that high desnity metal is formed between outer envelope and the interior involucrum; Interior involucrum is double layer of metal pipe and the overcoat metal tube thereof that holds the neutron source parts; Form with the mode that is flexible coupling between the metal tube; Interior involucrum and outer envelope are welded as a whole, and interior involucrum end is equipped with gland.
The utility model is all right:
Described screen layer is to be made up of thick hydrogenous material neutron shield layer of 200mm～900mm and the high desnity metal gamma shielding layer of 30mm～100mm.Described hydrogenous material is paraffin, water, tygon.Described high desnity metal is lead or depleted uranium or wolfram steel.Described outer envelope is processed by carbon steel sheet or corrosion resistant plate.The thickness of described outer envelope is 8mm～30mm.The thickness of described hydrogenous material neutron shield layer is that the thickness of 450mm, high desnity metal gamma shielding layer is 50mm.Described container is a cylindrical structural.
Compared with prior art, the beneficial effect of the utility model is:
Multilayer materials such as the neutron shield layer of the gamma shielding layer of involucrum, metal, hydrogenous material, outer envelope carried out protective shielding in the utility model adopted from inside to outside successively; Shield effectiveness is good; Interior involucrum adopts the different multiple layer metal pipe box of diameter to form the mode that is flexible coupling together and assembles; Well guaranteed the cleanliness of neutron source parts in interior involucrum, prevented crimp, shock resistance is better.Adopt the safety that has guaranteed neutron source in this container traffic neutron source parts process, also avoided assembling simultaneously the operation of neutron source at the nuclear reactor scene.
Description of drawings
Fig. 1 nuclear reactor starts the structural representation with the storage cask of neutron source parts
Involucrum schematic cross-section in Fig. 2
Involucrum, 5 gamma shielding layers, 6 neutron shield layers, 7 supports, 8 glands, 9 baffle plates, 10a inner layer metal pipe, 10b inner layer metal pipe, 11a outer layer metal tube, 11b outer layer metal tube, 12 overcoat metal tubes in 1 hanger, 2 neutron source parts, 3 outer envelopes, 4
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
A kind of nuclear reactor as shown in Figure 1 starts the storage cask with neutron source parts; This container is a column structure; It comprises outer envelope 3, interior involucrum 4, hanger 1, support 7; Be provided with the neutron shield layer and the high desnity metal gamma shielding layer of hydrogenous material between outer envelope 3 and the interior involucrum 4, outer envelope 3 and interior involucrum 4 are through being welded into an integral body.The structure of interior involucrum 4 as shown in Figure 2 does, two caliber different metallic pipe boxes together, inner layer metal pipe 10a, 10b are used to hold the neutron source parts, are flexible coupling between inside and outside layer metal tube 10a, 10b, 11a, the 11b; Outer layer metal tube 10b also is with overcoat metal tube 12 outward, also is to assemble with the mode that is flexible coupling.Above-mentioned be flexible coupling be meant between the metal tube and be nested together, relative between can move.As shown in Figure 2, interior involucrum 4 is for holding the structural representation of two neutron source parts 2.
Connect fixingly between interior involucrum 4 and the outer envelope 3 through baffle plate 9, the inner chamber that forms between the involucrum 4, outer envelope 3, baffle plate 9 in wherein can be used for can neutron shield layer 6 and gamma shielding layer 5.Interior involucrum 4 ends are equipped with gland 8, and behind the involucrum 4, gland 8 had prevented that neutron source parts 2 from moving around along interior involucrum 4 in neutron source parts 2 placed.Wherein can thickness is that the hydrogenous material of 200mm～900mm is the gamma shielding layer of the high desnity metal of 10mm～100mm as container as neutron shield layer and thickness between outer envelope 3 and the interior involucrum 4.The hydrogenous material of the utility model preferably adopts boracic paraffin, water, tygon, and high desnity metal is lead or depleted uranium or wolfram steel.
For the ease of transportation, the outer envelope 3 of container is provided with rigid support 7, is used for the rigid support of transportation.The horizontal direction of container and vertical direction all contain hanger 1, mainly contain two effects: the first, be used for the lifting entire container; The second, be used for fixing between container and the means of transport.Wherein the weld strength of the intensity of hanger 1 and shell is through adjusting, and this design can not be lost efficacy the lift on the package when using by the expection mode.
Container preferably adopts cylindrical structural, has further like this guaranteed that container is more even to the shielding on neutron source parts 2 all directions.The outer envelope 3 of container adopts thick carbon steel sheet or the compression moulding of corrosion resistant plate one of 8mm～30mm, the surface brush rust protection paint of container.Interior involucrum 4 also adopts different stainless-steel tube or the carbon steel pipes of two thick diameters of 8mm～30mm to constitute with the mode that is flexible coupling; Fabulous like this assurance the cleanliness of neutron source parts; Make its requirement of satisfying nuclear reactor, prevented that further neutron source parts 2 from damaging simultaneously in transportation.
Connect through corrosion resistant plate between outer envelope 3 and the interior involucrum 4, the inner chamber that forms between them is used to be provided with screen layer, and screen layer forms through can hydrogenous material and high desnity metal.The inner chamber that forms between outer envelope 3 and the interior involucrum 4 is all can high desnity metal and hydrogenous material both, position can that also can neutron source belongs in neutron source parts 2.
Present embodiment adopts neutron source parts 2 to do
252The neutron source of Cf nucleic, according to
252The physical property of Cf nucleic, adopting the neutron source emissivity is 1.6 * 10
9N/s; (Φ 10 * 3175mm) for the maximum physical dimension of neutron source rod; Wherein the thickness of paraffin is 450mm in the screen layer of container; The plumbous thickness of high desnity metal is 50mm, and the thickness of stainless steel outer envelope 3 is 10mm, and interior involucrum 4 is designed to hold the structure of two neutron source parts in the present embodiment; The thickness of the inside and outside double layer of metal pipe 10a of two neutron source parts, 10b, 11a, 11b all is respectively 1mm, 3mm in the wherein interior involucrum 4; Above-mentioned two neutron source parts that are with the double layer of metal pipe are with the overcoat metal tube 12 of 5mm outward, are 40 μ Sv/h through the neutron field dose of measuring this vessel surface after the above-mentioned screen layer protection, and the γ field dose is 370 μ Sv/h.
Present embodiment is with embodiment 1; Its difference is that the thickness of paraffin is 700mm in the screen layer of container, and the plumbous thickness of high desnity metal is 100mm; Neutron field dose through measuring this vessel surface after the above-mentioned screen layer protection is 1 μ Sv/h, and the γ field dose is 260 μ Sv/h.
Present embodiment is with embodiment 1; Its difference is that the thickness of paraffin is 200mm in the screen layer of container, and the plumbous thickness of high desnity metal is 30mm; Neutron field dose through measuring this vessel surface after the above-mentioned screen layer protection is 400 μ Sv/h, and the γ field dose is 2000 μ Sv/h.
Claims (8)
1. a nuclear reactor starts the storage cask with neutron source parts; This container is a column structure, and it comprises outer envelope, interior involucrum, hanger, support, and support and hanger are installed on the outer envelope; It is characterized in that; Be provided with the neutron shield layer of hydrogenous material and the gamma shielding layer that metal is formed between outer envelope and the interior involucrum, interior involucrum is double layer of metal pipe and the overcoat metal tube thereof that holds the neutron source parts, forms with the mode that is flexible coupling between the metal tube; Interior involucrum and outer envelope are welded as a whole, and interior involucrum end is equipped with gland.
2. a kind of nuclear reactor according to claim 1 starts the storage cask with neutron source parts; It is characterized in that described screen layer is to be made up of thick hydrogenous material neutron shield layer of 200mm～900mm and the high desnity metal gamma shielding layer of 30mm～100mm.
3. a kind of nuclear reactor according to claim 1 and 2 starts the storage cask with neutron source parts, it is characterized in that described hydrogenous material is paraffin, water, tygon.
4. a kind of nuclear reactor according to claim 1 and 2 starts the storage cask with neutron source parts, it is characterized in that described high desnity metal is lead or depleted uranium or wolfram steel.
5. a kind of nuclear reactor according to claim 1 starts the storage cask with neutron source parts, it is characterized in that described outer envelope is processed by carbon steel sheet or corrosion resistant plate.
6. a kind of nuclear reactor according to claim 5 starts the storage cask with neutron source parts, it is characterized in that the thickness of described outer envelope is 8mm～30mm.
7. a kind of nuclear reactor according to claim 2 starts the storage cask with neutron source parts, it is characterized in that the thickness of described hydrogenous material neutron shield layer is that the thickness of 450mm, high desnity metal gamma shielding layer is 50mm.
8. a kind of nuclear reactor according to claim 1 starts the storage cask with neutron source parts, it is characterized in that described container is a cylindrical structural.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203315931U CN202258393U (en) | 2011-09-06 | 2011-09-06 | Storage and transport container of primary neutron source components for starting nuclear reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203315931U CN202258393U (en) | 2011-09-06 | 2011-09-06 | Storage and transport container of primary neutron source components for starting nuclear reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258393U true CN202258393U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203315931U Expired - Lifetime CN202258393U (en) | 2011-09-06 | 2011-09-06 | Storage and transport container of primary neutron source components for starting nuclear reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258393U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314954A (en) * | 2011-09-06 | 2012-01-11 | 原子高科股份有限公司 | Storage and transportation container of primary neutron source component for starting nuclear reactor |
-
2011
- 2011-09-06 CN CN2011203315931U patent/CN202258393U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314954A (en) * | 2011-09-06 | 2012-01-11 | 原子高科股份有限公司 | Storage and transportation container of primary neutron source component for starting nuclear reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |