CN203026182U - Spent fuel transporting container with damping and impact-preventing spring device - Google Patents
Spent fuel transporting container with damping and impact-preventing spring device Download PDFInfo
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- CN203026182U CN203026182U CN 201320046452 CN201320046452U CN203026182U CN 203026182 U CN203026182 U CN 203026182U CN 201320046452 CN201320046452 CN 201320046452 CN 201320046452 U CN201320046452 U CN 201320046452U CN 203026182 U CN203026182 U CN 203026182U
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- barrel body
- stainless steel
- cylindrical shell
- spent fuel
- damping
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Abstract
The utility model belongs to the technical field of nuclear power transportation and in particular relates to a spent fuel transporting container with a damping and impact-preventing spring device. The transporting container is divided into three parts including a barrel body, a barrel body top structure and a barrel body bottom structure, wherein the barrel body is used as a container for containing a spent fuel assembly; an outer barrel body, a heat insulating layer, a middle barrel body, a barrel body lead shielding layer, an inner sleeve and a buffer spring positioning blocking sleeve are arranged along the radial direction of the barrel body from the outside to the inside in sequence; a plurality of groups of radial buffer springs are uniformly arranged between the inner sleeve and the buffer spring positioning blocking sleeve; the barrel body top structure is composed of a stainless steel top cover and an upper end socket; and the barrel body bottom structure consists of a lower end socket, a stainless steel supporting plate, a bottom lead shielding plate and a stainless steel bottom cover, wherein the stainless steel supporting plate, the bottom lead shielding plate and the stainless steel bottom cover are covered by the lower end socket and arranged from the inside to the outside in sequence. The spent fuel transporting container with the damping and impact-preventing spring device not only can be used for ensuring the radioactive shielding effect and the heat insulating effect of spent fuels, but also can be used for realizing the radial seismic resistance and the anti-impact buffering performance of the spent fuel barrel body.
Description
Technical field
The utility model belongs to nuclear power energy transportation technology field, particularly a kind of spent fuel transport container with damping, protecting against shock spring assembly.
Background technology
The spentnuclear fuel that draws off in nuclear power plant's reactor has very strong radioactivity, need to be transported to nuclear power plant other place in addition and deal carefully with.In transportation, cask will guarantee irradiated fuel assembly, and not only structure is excellent bad under normal circumstances, and in can guaranteeing that under special status radiomaterial that spentnuclear fuel discharges can not be leaked to environment.
Cask is the key equipment of spentnuclear fuel transportation, require cask to have very high security, can shield radioactive ray, also need simultaneously impact resistance, prevent that spentnuclear fuel from damaging, and causes that a large amount of radiomaterials is released under the effect of vibrations or external force.
Summary of the invention
The utility model provides a kind of spent fuel transport container with damping, protecting against shock spring assembly, has good radially antidetonation, impact resistance, shielding, temperature resistant capability.
The technical solution adopted in the utility model is:
This cask is divided into cylindrical shell, cylindrical shell top structure and cylinder body bottom structure three parts;
Described cylindrical shell is as the container that holds irradiated fuel assembly, radially be followed successively by from outside to inside outer cylinder body, thermofin, middle cylindrical shell, cylindrical shell lead shield layer, inner sleeve, buffer spring positioning sleeve, and evenly arrange between inner sleeve and buffer spring positioning sleeve and organize radially buffer spring more;
Described cylindrical shell top structure is made of stainless steel top cover and upper end;
Described cylinder body bottom structure is by lower end, and the stainless steel back up pad that is arranged in order from inside to outside, bottom lead shield plate, the stainless steel steel bottom that are coated by lower end form.
Described radially buffer spring along the circumferential direction is divided into the 6-8 group, along drum shaft to equidistantly being divided into some groups.
Described cylinder body bottom position is provided with drainage channel and drain outlet joint, and an end of drainage pipeline is connected with space between inner sleeve and buffer spring positioning sleeve.
The part that described drainage channel is positioned at cylindrical shell lead shield layer is the inverted U passage, is beneficial to radioactive water and reduces its radioactivity before discharge.
Be all by being welded to connect between described cylindrical shell radial structure, cylindrical shell top top cover and upper end are bolted, the conveniently assemble and disassemble material.
The beneficial effects of the utility model are:
Consider that irradiated fuel assembly is once in the environment long-term work of High Temperature High Pressure, its strength of materials can reduce, in order to realize to greatest extent the integrality of spentnuclear fuel in transportation, by adding buffer spring and corresponding buffer spring positioning sleeve, realize radially antidetonation and shock resistance in inner barrel.The buffer spring positioning sleeve is being axially integrative-structure, and radially the part is emptied, and purpose is to reduce the quality of cutting ferrule, facilitates the welding location of spring.Joint in drain outlet place's setting passes through at welded top lead shield sheet and stainless steel substrates, realizes the sealing of joint, has prevented radioactive leak.
The cylinder body bottom structure comprises by welding and realizes sealing, and simultaneously such overlaying structure can prevent radiomaterial to leak from the bottom.
Description of drawings
Fig. 1 is that D-D face diameter in Fig. 2 is to sectional view;
Fig. 2 is that A-A over glaze in Fig. 1 is to sectional view;
Fig. 3 is that C-C face diameter in Fig. 2 is to sectional view;
Fig. 4 is that B-B over glaze in Fig. 1 is to sectional view.
Number in the figure:
1-cylindrical shell lead shield layer, 2-middle layer, 3-thermofin, the 4-outer cylinder body, 5-buffer spring positioning sleeve, 6-is buffer spring radially, the 7-irradiated fuel assembly, 8-inner sleeve, 9-upper end, the 10-stainless steel top cover, 11-lower end, 12-stainless steel back up pad, 13-bottom lead shield layer, 14-stainless steel bottom, 15-drainage pipeline, 16-drain outlet joint.
Embodiment
The utility model provides a kind of spent fuel transport container with damping, protecting against shock spring assembly, below in conjunction with the drawings and specific embodiments, the utility model is described further.
The structure of this container is divided into cylindrical shell, cylindrical shell top structure and cylinder body bottom structure three parts as Figure 1-Figure 4.
Cylindrical shell is as the container that holds irradiated fuel assembly, radially be followed successively by from outside to inside outer cylinder body 4, thermofin 3, middle cylindrical shell 2, cylindrical shell lead shield layer 1, inner sleeve 8, buffer spring positioning sleeve 5, between each several part by being welded to connect, to realize the sealing of cylindrical shell.8 groups of radially buffer springs 6 evenly are set between inner sleeve 8 and buffer spring positioning sleeve 5, and radially buffer spring 6 along drum shaft to equidistant distribution.
The cylindrical shell top structure is made of stainless steel top cover 10 and upper end 9, is bolted between the two.9 whiles and outer cylinder body 4, thermofin 3, middle layer 2, cylindrical shell lead shield layer 1, inner sleeve 8 welded top of upper end.
The cylinder body bottom structure is by lower end 11, and the stainless steel back up pad 12 that is arranged in order from inside to outside, bottom lead shield plate 13, the stainless steel steel bottom 14 that are coated by lower end 11 form, and makes cylinder body bottom obtain good sealing, prevented radioactive leakage.Lower end 11 is inner to be welded with stainless steel back up pad 12, lead shield plate 13 and stainless steel bottom 14 outward flanges.
The cylinder body bottom position is provided with drainage channel 15 and drain outlet joint 16, and an end of drainage pipeline 15 is connected with space between inner sleeve 8 and buffer spring positioning sleeve 5.The part that drainage channel 15 is positioned at cylindrical shell lead shield layer 1 is the inverted U passage, is beneficial to radioactive water and reduces its radioactivity before discharge.
Claims (4)
1. the spent fuel transport container with damping, protecting against shock spring assembly, is characterized in that, is divided into cylindrical shell, cylindrical shell top structure and cylinder body bottom structure three parts;
Described cylindrical shell is as the container that holds irradiated fuel assembly, radially be followed successively by from outside to inside outer cylinder body (4), thermofin (3), middle cylindrical shell (2), cylindrical shell lead shield layer (1), inner sleeve (8), buffer spring positioning sleeve (5), and evenly arrange between inner sleeve (8) and buffer spring positioning sleeve (5) and organize radially buffer spring (6) more;
Described cylindrical shell top structure is made of stainless steel top cover (10) and upper end (9);
Described cylinder body bottom structure is by lower end (11), and the stainless steel back up pad (12) that is arranged in order from inside to outside, bottom lead shield plate (13), the stainless steel steel bottom (14) that are coated by lower end (11) form.
2. a kind of spent fuel transport container with damping, protecting against shock spring assembly according to claim 1, is characterized in that, described radially buffer spring (6) along the circumferential direction is divided into the 6-8 group, along drum shaft to equidistantly being divided into some groups.
3. a kind of spent fuel transport container with damping, protecting against shock spring assembly according to claim 1, it is characterized in that, described cylinder body bottom position is provided with drainage channel (15) and drain outlet joint (16), and an end of drainage pipeline (15) is connected with space between inner sleeve (8) and buffer spring positioning sleeve (5).
4. a kind of spent fuel transport container with damping, protecting against shock spring assembly according to claim 3, is characterized in that, the part that described drainage channel (15) is positioned at cylindrical shell lead shield layer (1) is the inverted U passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320046452 CN203026182U (en) | 2013-01-28 | 2013-01-28 | Spent fuel transporting container with damping and impact-preventing spring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320046452 CN203026182U (en) | 2013-01-28 | 2013-01-28 | Spent fuel transporting container with damping and impact-preventing spring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026182U true CN203026182U (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320046452 Expired - Fee Related CN203026182U (en) | 2013-01-28 | 2013-01-28 | Spent fuel transporting container with damping and impact-preventing spring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203026182U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103106938A (en) * | 2013-01-28 | 2013-05-15 | 华北电力大学 | Spent fuel shipping container with shock absorption and striking resistant spring device |
| RU2549364C1 (en) * | 2013-10-01 | 2015-04-27 | Федеральное государственное унитарное предприятие "Российский Федеральный ядерный центр-Всероссийский научно-исследовательский институт экспериментальной физики"-ФГУП "РФЯЦ-ВНИИЭФ" | Protection method of radioactive massive cargoes against intensive mechanical actions |
| CN104952505A (en) * | 2015-06-12 | 2015-09-30 | 中国核电工程有限公司 | Container cover for transporting container for transporting spherical nuclear fuel elements |
| EP3062313A1 (en) * | 2015-02-26 | 2016-08-31 | GNS Gesellschaft für Nuklear-Service mbH | Container for storing radioactive inventory and method for producing the container |
| CN106935304A (en) * | 2015-12-30 | 2017-07-07 | 西安核设备有限公司 | A kind of fuel container damper with soldering and sealing anti-flaming function |
| WO2020107180A1 (en) * | 2018-11-26 | 2020-06-04 | 中广核研究院有限公司 | Fuel assembly transport container |
| WO2022179640A1 (en) * | 2021-04-19 | 2022-09-01 | 中广核工程有限公司 | Radiation shielding and heat insulation device |
-
2013
- 2013-01-28 CN CN 201320046452 patent/CN203026182U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103106938A (en) * | 2013-01-28 | 2013-05-15 | 华北电力大学 | Spent fuel shipping container with shock absorption and striking resistant spring device |
| CN103106938B (en) * | 2013-01-28 | 2015-10-21 | 华北电力大学 | A kind of spent fuel transport container with damping, protecting against shock spring assembly |
| RU2549364C1 (en) * | 2013-10-01 | 2015-04-27 | Федеральное государственное унитарное предприятие "Российский Федеральный ядерный центр-Всероссийский научно-исследовательский институт экспериментальной физики"-ФГУП "РФЯЦ-ВНИИЭФ" | Protection method of radioactive massive cargoes against intensive mechanical actions |
| EP3062313A1 (en) * | 2015-02-26 | 2016-08-31 | GNS Gesellschaft für Nuklear-Service mbH | Container for storing radioactive inventory and method for producing the container |
| CN105931690A (en) * | 2015-02-26 | 2016-09-07 | Gns核能服务有限公司 | Container for radioactive inventory and method of making same |
| CN104952505A (en) * | 2015-06-12 | 2015-09-30 | 中国核电工程有限公司 | Container cover for transporting container for transporting spherical nuclear fuel elements |
| CN106935304A (en) * | 2015-12-30 | 2017-07-07 | 西安核设备有限公司 | A kind of fuel container damper with soldering and sealing anti-flaming function |
| CN106935304B (en) * | 2015-12-30 | 2018-07-27 | 西安核设备有限公司 | A kind of fuel container damper with soldering and sealing flame retarding function |
| WO2020107180A1 (en) * | 2018-11-26 | 2020-06-04 | 中广核研究院有限公司 | Fuel assembly transport container |
| GB2591828A (en) * | 2018-11-26 | 2021-08-11 | China Nuclear Power Technology Res Inst Co Ltd | Fuel assembly transport container |
| GB2591828B (en) * | 2018-11-26 | 2022-05-18 | China Nuclear Power Technology Res Inst Co Ltd | Fuel assembly transport container |
| WO2022179640A1 (en) * | 2021-04-19 | 2022-09-01 | 中广核工程有限公司 | Radiation shielding and heat insulation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20140128 |