CN206134268U - Weary fuel storage ware with seal structure - Google Patents
Weary fuel storage ware with seal structure Download PDFInfo
- Publication number
- CN206134268U CN206134268U CN201621107956.2U CN201621107956U CN206134268U CN 206134268 U CN206134268 U CN 206134268U CN 201621107956 U CN201621107956 U CN 201621107956U CN 206134268 U CN206134268 U CN 206134268U
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- CN
- China
- Prior art keywords
- lid
- bucket wall
- staving
- sealing
- store device
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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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- Measurement Of Radiation (AREA)
Abstract
The utility model discloses a weary fuel storage ware with seal structure, include: the staving, the bucket wall inboard of staving is equipped with the lead layer of radiation protection, and the inside of staving is equipped with the screen work that is used for loading the spentnuclear fuel, and the upper end opening part of staving is equipped with the lid, and the lid includes: from the top down connected gradually in order and coincide in the center first lid, second lid and third lid are equipped with the sealing ring between and the bucket wall, be equipped with on the bucket wall to be used for first lid with between the second lid with the second lid with cavity department between the third lid reaches the lid with inert gas's logical groove is filled to the junction of staving, and the junction of barrel wall and lid is equipped with the detection pipe of being connected with the equipment of the pressure that is used for the internal gas of gauging tank and radioactive content. The utility model has the characteristics of the leakproofness is good, and the security is high, and stability is good, simple structure.
Description
Technical field
This utility model is related to nuclear industry spentnuclear fuel sealed type storage technical field, it particularly relates to a kind of have sealing
The irradiated fuel store device of structure.
Background technology
Spentnuclear fuel has high specific activity, can discharge substantial amounts of neutron, and the neutron is high-level waste, using reservoir pair
Spentnuclear fuel is stored, if the sealing effectiveness of reservoir is bad, the neutron of spentnuclear fuel release will be leaked, so as to human body
Injury is produced, in addition, the air in external environment can then cause the oxidation of irradiated fuel assembly involucrum once entering in reservoir,
The fission product for producing and the effect for preventing fission product from leaking in causing involucrum to lose protection spentnuclear fuel, it is poisonous so as to cause
Fission product is discharged in air, and human body is worked the mischief, therefore need to improve the sealing property of reservoir.
In nuclear industry field, according to correlation technique, the sealing of reservoir is mostly single seal cap sealing, and does not have right
The port of reservoir carries out the seal form of inert gas seal, the effect of the effect opposing layers sealing of monolayer sealing compared with
Difference, in the form of lazy envelope, can not then cause the gas in air to enter in reservoir, easily causes spentnuclear fuel at reservoir opening
The oxidation of involucrum, makes spentnuclear fuel lose one layer of protective barrier, increases dangerous hidden danger.
In addition, in prior art, the reservoir adopted when sealing to spentnuclear fuel cannot be realized detecting its internal pressure
The content of strong and radioelement, it is impossible to detect the sealing property of reservoir, so as to when cannot detect that spentnuclear fuel is stored for whether
With safety.
Utility model content
This utility model is intended to solve one of above-mentioned technical problem to a certain extent.
In view of this, this utility model provides a kind of irradiated fuel store device with sealing structure, and the reservoir can be real
It is existing multi-layer sealed, improve sealing effectiveness, and the pressure and radioactive element content of the gas of detectable lid and bucket wall junction.
To solve above-mentioned technical problem, this utility model provides a kind of irradiated fuel store device with sealing structure, including：
Staving, is provided with the lead layer of radioprotective on the inside of the bucket wall of the staving, the inside of the staving is provided with for loading the lattice of spentnuclear fuel
Lid is provided with frame, and the upper end open of the staving, the lid includes：It is sequentially connected in order from top to bottom and center weight
The first lid, the second lid and the 3rd lid for closing, is provided with sealing ring, sets on the bucket wall between the lid and the bucket wall
Have for the cavity between first lid and second lid and between second lid and the 3rd lid
The groove of noble gases is filled in the junction of place and the lid and the staving, the junction of the bucket wall and the lid
It is provided with and is used to measure what the lid was connected with the equipment of the pressure and radioactive element content of staving junction gas
Detection conduit.
Further, the lower end of first lid, second lid and the 3rd lid be provided with first boss, second
Boss and the 3rd boss, the composition that the first boss, the second boss and the 3rd boss are provided with the bucket wall
First convex shoulder of stairstepping, the second convex shoulder and the 3rd convex shoulder are fitted and connected.
Further, it is equipped with first convex shoulder, second convex shoulder and the 3rd convex shoulder described close for assembling
The groove of seal ring.
Further, thickness direction insertion of the groove along the bucket wall, and the end of the groove is provided with the first sealing
Cock.
Further, it is described detection conduit along the bucket wall thickness direction insertion, and it is described detection conduit end be provided with
Second sealing cock.
Further, the sealing ring is included for sealing first lid, second lid and the described 3rd respectively
First sealing ring of lid, the second sealing ring and the 3rd sealing ring.
Further, in the periphery of first lid, second lid and the 3rd lid and the bucket wall
Disc is fitted and connected.
Further, the screwed hole being provided with corresponding to the bucket wall, offers corresponding through hole on the lid, and described
One lid, second lid and the 3rd lid are bolted to connection between the bucket wall.
Further, the sealing ring is metal C-shaped ring.
It is of the present utility model to have technical effect that：According to a kind of irradiated fuel store with sealing structure of the present utility model
Device, the reservoir are provided with three lids, and each lid is equipped with sealing ring with bucket wall junction, forms three seals barrier, increases
Plus sealing effectiveness, prevent the radioactive substance of spentnuclear fuel release from getting into the air.In addition, being additionally provided with groove on bucket wall, pass through
The groove is filled with that noble gases are made between every each two adjacent caps and lid and bucket wall junction are filled with noble gases,
Lazy sealing is formed, is made the pressure inside reservoir higher than the pressure in outside air, is prevented the air entrance storage in external environment
Inside storage, it is to avoid the involucrum oxidation of spentnuclear fuel, so as to preventing spentnuclear fuel from producing toxic fission product and preventing fission product
It is exposed in reservoir.
Bucket wall is provided with detection conduit, and the pressure and radioelement that can measure the gas between two adjacent caps contains
Amount, when the pressure between two lids is less or during more radioelement, then needs to process reservoir, checks that lid is
It is no to have leakage, noble gases need to be added between two adjacent caps if No leakage, so as to detect the safety of irradiated fuel store device
Property.The leakage of harmful substance in reservoir can effectively be prevented by above-mentioned detection mode.
This utility model has good airproof performance, safe, good stability, the characteristics of simple structure.
Description of the drawings
Fig. 1 is a kind of overall knot of the irradiated fuel store device with sealing structure according to this utility model one embodiment
Structure schematic diagram；
Fig. 2 is the decomposing schematic representation of the lid according to this utility model one embodiment；
Fig. 3 is the staving schematic diagram according to this utility model one embodiment；
Fig. 4 is the rip cutting schematic cross-section of the sealing ring according to this utility model one embodiment；
Wherein：1- stavings；2- lids；3- convex shoulders；4- grooves；5- sealing rings；6- detects conduit；7- bucket walls；8- bolts；
11- screwed holes；12- lead layers；13- screen works；20- cavitys；The first lids of 21-；The second lids of 22-；The 3rd lids of 23-；24- leads to
Hole；27- first boss；28- second boss；The 3rd boss of 29-；31- grooves；The first convex shoulders of 32-；The second convex shoulders of 33-；34-
Three convex shoulders；41- first seals cock；The first sealing rings of 51-；The second sealing rings of 52-；The 3rd sealing rings of 53-；61- second is sealed
Cock.
Specific embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art
This utility model can be better understood from and can be practiced, but illustrated embodiment is not as to restriction of the present utility model.
As shown in figure 1, according to a kind of irradiated fuel store device with sealing structure of the present utility model, including：Staving 1,
It is provided with the lead layer 12 of radioprotective on the inside of the bucket wall 7 of staving 1, the inside of staving 1 is provided with for loading the screen work 13 of spentnuclear fuel, and bucket
Lid 2 is provided with the upper end open of body 1, lid 2 includes：Be sequentially connected in order from top to bottom and center superposition the first lid
21st, the second lid 22 and the 3rd lid 23, are provided with sealing ring 5 between lid 2 and bucket wall 7, bucket wall 7 is provided with for described
Cavity 20 between one lid 21 and second lid 22 and between second lid 22 and the 3rd lid 23 is sentenced
And the groove 4 of noble gases is filled in the junction of lid 2 and staving 1, the junction of the bucket wall 7 and the lid 2 be provided with
For measuring the detection conduit 6 that lid 2 is connected with the equipment of the pressure and radioactive element content of 1 junction gas of staving.
According to a kind of irradiated fuel store device with sealing structure of the present utility model, the reservoir is provided with three lids 2,
Each lid 2 is equipped with sealing ring 5 with 7 junction of bucket wall, forms three seals barrier, increases sealing effectiveness, prevents spentnuclear fuel
The radioactive substance of release gets into the air.In addition, groove 4 is additionally provided with bucket wall 7, noble gases are filled with by the groove 4
Make between every each two adjacent caps 2 and lid 2 is filled with noble gases with 7 junction of bucket wall, form lazy sealing, make storage
Pressure inside storage is prevented the air in external environment from entering inside reservoir, prevents weary higher than the pressure in outside air
The involucrum oxidation of fuel, so as to preventing the toxic fission product that spentnuclear fuel is produced to be exposed in reservoir and preventing fission product
Leak in external environment from reservoir.
Bucket wall 7 is provided with detection conduit 6, and the pressure and radioelement that can measure the gas between adjacent caps 2 contains
Amount, when the pressure between two lids 2 is less or during more radioelement, then needs to process reservoir, checks lid 2
Whether there is leakage, noble gases need to be added between two lids 2 if No leakage, so as to detect the safety of irradiated fuel store device
Property.The leakage of harmful substance in reservoir can effectively be prevented by above-mentioned detection mode.
The lower end of the first lid 21, the second lid 22 and the 3rd lid 23 is provided with first boss 27, second boss 28 and
Three boss 29, the first of the composition stairstepping that first boss 27, second boss 28 and the 3rd boss 29 are provided with bucket wall 7 are convex
Shoulder 32, the second convex shoulder 33 and the 3rd convex shoulder 34 are fitted and connected, three 2 sealing storages of lid so that sealing effectiveness is more preferable.
As shown in figure 1, being equipped with for assembling sealing ring 5 on the first convex shoulder 32, the second convex shoulder 33 and the 3rd convex shoulder 34
Groove 31, groove 31 can prevent sealing ring 5 in the radial direction play of staving 1.
Groove 4 and detection conduit 6 are along the thickness direction insertion of bucket wall 7, and the end of groove 4 is provided with the first sealing cock
41, detect that the end of conduit 6 is provided with the second sealing cock 61, when needing noble gases to be filled to reservoir, open first close
Envelope cock 41, opens second when needing and measuring the pressure or radioactive element content of gas between two lids 2 and seals cock
61, in the case of other, it is sealing state.
As depicted in figs. 1 and 2, sealing ring 5 is included for sealing the first lid 21, the second lid 22 and the 3rd lid respectively
23 the first sealing ring 51, the second sealing ring 52 and the 3rd sealing ring 53, the first sealing ring 51, the second sealing ring 52 and the 3rd are close
Seal ring 53 is of different sizes, and bottom is assemblied in corresponding groove 31, the lower surface of the boss that upper end is provided with corresponding lid 2
It is brought into close contact, so as to realize sealing function of the lid 2 to staving 1.
The inner headed face of the periphery and bucket wall 7 of the first lid 21, the second lid 22 and the 3rd lid 23 is fitted and connected.
As shown in figure 3, for the schematic diagram of staving 1, staving 1 is provided with screwed hole 11.
Corresponding to the screwed hole 11 that bucket wall 7 is provided with, corresponding through hole 24, the first lid 21, second on lid 2, are offered
Lid 22 and the 3rd lid 23 are fixedly connected by bolt 8 between bucket wall 7, connect the second lid 22 and the 3rd lid 23
Bolt 8 is respectively placed in the cavity 20 between the first lid 21 and the second lid 22 and between the second lid 22 and the 3rd lid 23
Interior, the cavity 20 realizes the sealing between lid 2 by filling noble gases.
As shown in figure 4, sealing ring 5 is metal C-shaped ring.Structure of the rip cutting section of sealing ring 5 for class similar C-shaped.
Noble gases are helium or argon, chemical property very torpescence, will not aoxidize the involucrum of spentnuclear fuel.In adjacent caps
Certain noble gases are filled between 2, the pressure between lid 2 can be made more than ambient atmosphere pressure, effectively prevented air from entering storage
In device, the involucrum of spentnuclear fuel is prevented to be oxidized.
According to a kind of spent fuel dry-type storage device with sealing structure of the present utility model, its using method is as follows：
Spentnuclear fuel is loaded in screen work 13, first by the 3rd sealing ring 53 be put into that corresponding 3rd convex shoulder 34 is provided with it is recessed
In groove 31, the 3rd lid 23 is arranged at the opening of staving 1, the 3rd lid 23 is connected by bolt 8 with bucket wall 7.
Then, the second sealing ring 52 is put in the groove 31 that corresponding second convex shoulder 33 is provided with, by the second lid 22
At the opening of staving 1, the second lid 22 is connected by bolt 8 with bucket wall 7.
First sealing ring 51 is put in the groove 31 that corresponding first convex shoulder 32 is provided with, the first lid 21 is arranged on
At the opening of staving 1, the first lid 21 is connected by bolt 8 with bucket wall 7.
Open first and seal cock 41, be filled with rare gas into groove 4, rare gas into two adjacent caps 2 it
Between form lazy sealing, after inflation is finished, screw the first sealing cock 41.
Finally, open second and seal cock 61, gas pressure intensity detection and radioelement are carried out in the end of detection conduit 6
The detection of content, when testing result meets safety criterion, screws the second sealing cock 61；If testing result is unqualified,
Need to reexamine whether reservoir has leakage, or continue addition noble gases until reaching criterion of acceptability.
In sum, this utility model has good airproof performance, safe, good stability, the characteristics of simple structure.
Embodiment described above is only the preferred embodiment lifted to absolutely prove this utility model, this utility model
Protection domain not limited to this.Equivalent substitute or change that those skilled in the art are made on the basis of this utility model
Change, within protection domain of the present utility model.Protection domain of the present utility model is defined by claims.
Claims (9)
1. a kind of irradiated fuel store device with sealing structure, including：Staving, is provided with radioprotective on the inside of the bucket wall of the staving
Lead layer, the inside of the staving are provided with for loading the screen work of spentnuclear fuel, and are provided with lid at the upper end open of the staving, its
It is characterised by, the lid includes：Be sequentially connected in order from top to bottom and center superposition the first lid, the second lid and
Three lids, are provided with sealing ring between the lid and the bucket wall, the bucket wall is provided with first lid and institute
State at the cavity between the second lid and between second lid and the 3rd lid and the lid and the staving
Junction fill the groove of noble gases, the junction of the bucket wall and the lid be provided with for measure the lid with
The detection conduit of the equipment connection of the pressure and radioactive element content of staving junction gas.
2. a kind of irradiated fuel store device with sealing structure according to claim 1, it is characterised in that first lid
The lower end of body, second lid and the 3rd lid is provided with first boss, second boss and the 3rd boss, and described first is convex
It is first convex shoulder of the composition stairstepping that platform, the second boss and the 3rd boss and the bucket wall are provided with, second convex
Shoulder and the 3rd convex shoulder are fitted and connected.
3. a kind of irradiated fuel store device with sealing structure according to claim 2, it is characterised in that described first is convex
It is equipped with shoulder, second convex shoulder and the 3rd convex shoulder for assembling the groove of the sealing ring.
4. a kind of irradiated fuel store device with sealing structure according to claim 1, it is characterised in that the groove edge
The thickness direction insertion of the bucket wall, and the end of the groove is provided with the first sealing cock.
5. a kind of irradiated fuel store device with sealing structure according to claim 1, it is characterised in that the detection is led
Thickness direction insertion of the pipe along the bucket wall, and the end of the detection conduit is provided with the second sealing cock.
6. a kind of irradiated fuel store device with sealing structure according to claim 1, it is characterised in that the sealing ring
Including for seal respectively first lid, the first sealing ring of second lid and the 3rd lid, second sealing
Ring and the 3rd sealing ring.
7. a kind of irradiated fuel store device with sealing structure according to claim 1, it is characterised in that first lid
The periphery of body, second lid and the 3rd lid is fitted and connected with the inner headed face of the bucket wall.
8. a kind of irradiated fuel store device with sealing structure according to claim 1, it is characterised in that corresponding to described
The bucket screwed hole that is provided with of wall, offers corresponding through hole on the lid, first lid, second lid and described
3rd lid is bolted to connection between the bucket wall.
9. a kind of irradiated fuel store device with sealing structure according to claim 1, it is characterised in that the sealing ring
For metal C-shaped ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621107956.2U CN206134268U (en) | 2016-10-09 | 2016-10-09 | Weary fuel storage ware with seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621107956.2U CN206134268U (en) | 2016-10-09 | 2016-10-09 | Weary fuel storage ware with seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206134268U true CN206134268U (en) | 2017-04-26 |
Family
ID=58572140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621107956.2U Active CN206134268U (en) | 2016-10-09 | 2016-10-09 | Weary fuel storage ware with seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206134268U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107578836A (en) * | 2017-08-30 | 2018-01-12 | 中核四0四有限公司 | MOX pellets storage system and method |
| CN113056796A (en) * | 2018-12-28 | 2021-06-29 | Nfc物流股份公司 | Spent nuclear fuel storage method and storage barrel for implementing same |
-
2016
- 2016-10-09 CN CN201621107956.2U patent/CN206134268U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107578836A (en) * | 2017-08-30 | 2018-01-12 | 中核四0四有限公司 | MOX pellets storage system and method |
| CN113056796A (en) * | 2018-12-28 | 2021-06-29 | Nfc物流股份公司 | Spent nuclear fuel storage method and storage barrel for implementing same |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |