CN207264794U - MOX pellet storage facilities - Google Patents
MOX pellet storage facilities Download PDFInfo
- Publication number
- CN207264794U CN207264794U CN201721086419.9U CN201721086419U CN207264794U CN 207264794 U CN207264794 U CN 207264794U CN 201721086419 U CN201721086419 U CN 201721086419U CN 207264794 U CN207264794 U CN 207264794U
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- CN
- China
- Prior art keywords
- container
- cladding tubes
- storage facility
- mox pellets
- mox
- 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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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model belongs to nuclear industry sintering pellet storing technology field, and in particular to a kind of MOX pellets storage facility.Lower end plug is connected with cladding tubes, and upper end plug is connected with cladding tubes, and MOX pellets load cladding tubes, and cladding tubes are inserted into the container tank of steel plate framework with holes, covered container lid, and thermometer, air gauge and tracheae are provided with container cover.Buckle is provided with container cover, is fixed container tank and container cover by being buckled.Sealing ring is provided between container tank and container cover.Container top tank structure is provided with lead screen layer.The utility model realizes the safe storage of MOX pellets, solves the problems, such as radiation protection, can monitor the temperature of its tank interior in real time, it is therefore prevented that pellet exposes the moisture absorption, oxygen uptake in atmosphere.
Description
Technical field
The utility model belongs to nuclear industry nuclear fuel storage technical field, and in particular to a kind of MOX pellets storage facility.
Background technology
Mox fuel factory is the intermediate link between reprocessing plant and presurized water reactor and fast reactor, is to realize China's nuclear fuel closure
The key link of circulation.MOX green compact after high temperature sintering is come out of the stove, the pellet of batch because of subsequent process equipment production capacity not
Foot did not had storage experience before domestic, is directly deposited in inside jar, it is necessary to be stored, and pellet is packed together, and produced big
The heat of amount can not discharge, and cause serious hidden danger, while high-volume pellet is packed together, and dose of radiation is larger, does not fill
Divide and consider radiation shield, be directly put in glove box, there are great risk.The banking system that MOX experiment lines use, is not examined
Consider sealing, pellet exposes in atmosphere, and the pellet meeting moisture absorption, oxygen uptake, cause the qualified pellet after sintering that qualitative change occurs, be changed into not
Qualified pellet.
The content of the invention
The purpose of this utility model is to provide a set of economic, effectively, practical core MOX pellet storage facilities, with reality
The MOX pellets storage of existing mass.
To reach above-mentioned purpose, technical solution adopted in the utility model is：
A kind of MOX pellets storage facility, lower end plug are connected with cladding tubes, and upper end plug is connected with cladding tubes, and MOX pellets load
Cladding tubes, cladding tubes are inserted into the container tank of steel plate framework with holes, covered container lid, and thermometer, air pressure are provided with container cover
Table and tracheae.
Buckle is provided with the container cover, is fixed container tank and container cover by being buckled.
Sealing ring is provided between the container tank and container cover.
The container top tank structure is provided with lead screen layer.
Holddown spring is housed in the cladding tubes.
The lower end plug is welded with cladding tubes.
The upper end plug is threadedly coupled with cladding tubes.
The container tank is connected with oil-sealed rotary pump, and oil-sealed rotary pump is high by three-way valve and hold-up vessel and high pressure
Purity nitrogen gas bottle connects.
Having the beneficial effect that acquired by the utility model：
The utility model realizes the safe storage of MOX pellets, solves the problems, such as radiation protection, can monitor it in real time
The temperature of tank interior, shifts the heat that pellet is produced from thermal phenomenon in time, avoids pellet exposure in atmosphere so as to the moisture absorption, suction
Oxygen, it is ensured that the important parameter of fuel pellet does not change.
Brief description of the drawings
Fig. 1 is MOX pellets storage facility structure chart I described in the utility model；
Fig. 2 is MOX pellets storage facility structure chart II described in the utility model；
Fig. 3 is MOX pellets storage facility structure chart III described in the utility model；
In figure：1st, container tank；2nd, it is buckled；3rd, sealing ring；4th, thermometer；5th, air gauge；6th, tracheae；7th, upper end plug；8th, press
Tight spring；9th, lower end plug；10th, perforated steel plate frame；11st, hold-up vessel；12nd, three-way valve；13rd, oil-sealed rotary pump；14th, high pressure
High-purity nitrogen gas cylinder.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 1-Fig. 3, MOX pellets storage facility described in the utility model includes container tank 1, buckle 2, sealing ring
3rd, thermometer 4, air gauge 5, tracheae 6, upper end plug 7, holddown spring 8, lower end plug 9, perforated steel plate frame 10, hold-up vessel 11,
Three-way valve 12, oil-sealed rotary pump 13 and high pressure, high purity degree nitrogen cylinder 14.
Holddown spring 8 is housed, lower end plug 9 is welded with cladding tubes, and upper end plug 7 is threadedly coupled with cladding tubes in cladding tubes.Will
MOX pellets load cladding tubes, then cladding tubes are inserted into the container tank 1 of steel plate framework 10 with holes, covered container lid, in container cover
Buckle 2 is provided with, container tank 1 is fixed with container cover by buckle 2, sealing ring 3 is provided between container tank 1 and container cover.
Thermometer 4, air gauge 5 and tracheae 6 are provided with container cover.1 inner wall of container tank is provided with lead screen layer.
Lower end plug 9 and the cladding tubes of single rod weld together, and the MOX pellets after sintering are fitted into single rod, load and compress
Spring 8, tightens upper end plug 7, and holddown spring 8 compresses MOX pellets, prevents that MOX pellets move in pipe in transport process
It is dynamic to cause to crush.Single rod equipped with MOX pellets is inserted vertically into the perforated steel plate frame 10 in container tank 1, then by container cover
Cover, tighten threading snaps 2.Air in container tank 1 is pumped by oil-sealed rotary pump 13, be re-filled with high pressure, high purity degree nitrogen into
Row protection.In addition, having thermometer 4 and air gauge 5 in container cover, temperature and air pressure inside container tank 1 can be detected constantly.
Perforated steel plate frame 10 is three-ply plate composite unit structure, and every layer of steel plate thickness about 5mm, is machined with and cladding tubes phase
Coordinate through hole, three-ply plate structure fixes cladding tubes.Meanwhile it is machined with every layer of steel plate a small amount of for the logical of gas circulation
Hole.
When thermometer 4 or 5 detection temperature of air gauge are excessive or when air pressure is too low, triple valve 12, which is connected, vacuumizes gas circuit progress
Vacuumize, triple valve 12 connects nitrogen gas circuit after about 5min, and gas in high pressure, high purity degree nitrogen cylinder 14 is passed through in hold-up vessel.
Claims (8)
- A kind of 1. MOX pellets storage facility, it is characterised in that：Lower end plug (9) is connected with cladding tubes, upper end plug (7) and cladding tubes Connection, MOX pellets load cladding tubes, and cladding tubes are inserted into the container tank (1) of steel plate framework (10) with holes, and covered container lid, holds Device, which covers, is provided with thermometer (4), air gauge (5) and tracheae (6).
- 2. MOX pellets storage facility according to claim 1, it is characterised in that：Buckle is provided with the container cover (2), container tank (1) is fixed with container cover by buckle (2).
- 3. MOX pellets storage facility according to claim 1, it is characterised in that：The container tank (1) and container cover it Between be provided with sealing ring (3).
- 4. MOX pellets storage facility according to claim 1, it is characterised in that：Described container tank (1) inner wall is provided with Lead screen layer.
- 5. MOX pellets storage facility according to claim 1, it is characterised in that：Equipped with compression bullet in the cladding tubes Spring (8).
- 6. MOX pellets storage facility according to claim 1, it is characterised in that：The lower end plug (9) is welded with cladding tubes Connect.
- 7. MOX pellets storage facility according to claim 1, it is characterised in that：The upper end plug (7) and cladding tubes spiral shell Line connects.
- 8. MOX pellets storage facility according to claim 1, it is characterised in that：The container tank (1) and mechanical vacuum (13) connection is pumped, oil-sealed rotary pump (13) passes through three-way valve (12) and hold-up vessel (11) and high pressure, high purity degree nitrogen cylinder (14) Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721086419.9U CN207264794U (en) | 2017-08-29 | 2017-08-29 | MOX pellet storage facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721086419.9U CN207264794U (en) | 2017-08-29 | 2017-08-29 | MOX pellet storage facilities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207264794U true CN207264794U (en) | 2018-04-20 |
Family
ID=61923167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721086419.9U Active CN207264794U (en) | 2017-08-29 | 2017-08-29 | MOX pellet storage facilities |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207264794U (en) |
-
2017
- 2017-08-29 CN CN201721086419.9U patent/CN207264794U/en active Active
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