CN205334970U - Device is alleviated to sodium fire pressure - Google Patents
Device is alleviated to sodium fire pressure Download PDFInfo
- Publication number
- CN205334970U CN205334970U CN201521040589.4U CN201521040589U CN205334970U CN 205334970 U CN205334970 U CN 205334970U CN 201521040589 U CN201521040589 U CN 201521040589U CN 205334970 U CN205334970 U CN 205334970U
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- CN
- China
- Prior art keywords
- sodium
- pressure
- frame
- apron
- alleviated
- 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.)
- Withdrawn - After Issue
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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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Abstract
The utility model relates to a nuclear reactor safety device. Alleviate the available problem of measure for solving the china's sodium fire pressure that does not still have the maturity, the utility model provides a device is alleviated to sodium fire pressure. Device is alleviated to sodium fire pressure includes decoration panel, sealed apron and apron frame, the decoration panel passes through wall body penetration piece and apron frame fixed connection, sealed apron go up the reason through the connecting piece with lap the frame on the frame be connected, sealed apron can use connecting piece department to rotate as the axle to it opens with closed to realize it, sealed apron lower edge is equipped with the permanent magnet, and apron frame lower frame is equipped with the actuation material that can take place attraction with the permanent magnet. The utility model discloses a device is alleviated to sodium fire pressure adopts the active design of non -, and the reliability is high, the leakproofness is good, has effectively reduced the leak possibility of environment of radioactivity sodium aerosol, avoid the pressure in the twinkling of an eye at sodium fire initial stage to the destruction of fast reactor facility, ensured the security of fast reactor.
Description
Technical field
This utility model relates to a kind of nuclear reactor safety equipment, particularly to a kind of sodium pressure ignition relieving apparatus。
Background technology
Sodium fire safety is the important content of fast reactor security consideration。Owing to fast reactor sodium technology room adopts the design of block method, between technique, sealing property is better, and when therefore there is sodium fire accident, particularly in the vaporific sodium fire initial stage, room temperature pressure can raise rapidly, it is possible to causes the destruction of the building enclosure such as wall, ventilation shaft between technique。
In the world the instantaneous pressure at sodium fire initial stage (especially vaporific sodium fire) is all paid much attention to, but in disclosed document all not mentioned concrete pressure releasing method and equipment therefor。
At present, the existing fast reactor scheme of China adopts Pool sodium fire as design criteria, and primary Ioops sodium technology room is air atmosphere, is configured with nitrogen flood system for putting out sodium fire。But, China can directly apply owing to there is no ripe sodium pressure ignition mitigation strategy, in addition in the world can be for reference also without disclosed concrete technology, in this case, to avoid the heavy damage to fast reactor facility of the instantaneous pressure at sodium fire initial stage (especially vaporific sodium fire), farthest guarantee to pile up safety when sodium fire accident occurs soon, it is necessary to a kind of effective sodium pressure ignition relieving apparatus of research and development。
Utility model content
For solve China there is no maturation sodium pressure ignition mitigation strategy can problem, it is to avoid the instantaneous pressure at the sodium fire initial stage destruction to fast reactor facility, improve the safety of fast reactor, this utility model provides a kind of sodium pressure ignition relieving apparatus。
Described sodium pressure ignition relieving apparatus includes decoration panel, seal cover board and cover plate framework；Described decoration panel is connected by body of wall penetration piece and cover plate framework are fixing；Described seal cover board upper limb is connected with cover plate framework upper side frame by connector, and seal cover board can rotate with connector place for axle, to realize its unlatching and Guan Bi；Described seal cover board lower edge is provided with permanent magnet, and cover plate framework lower frame is provided with the adhesive material attracted with permanent magnet generation。
It is preferred for being additionally provided with counterweight on described seal cover board。
Described adhesive material is preferably the material comprising ferrum, cobalt or nickel。
Described adhesive material is preferably ferrum。
A kind of method adopting above-mentioned sodium pressure ignition relieving apparatus to alleviate sodium pressure ignition, the method comprises the following steps: first, according to fast reactor designing requirement, offers the pressure release orifice of reasonable quantity on the body of wall top of the adjacent sodium technology room of fast reactor；Then, described sodium pressure ignition relieving apparatus is installed at each pressure release orifice place, and makes the decoration panel of described sodium pressure ignition relieving apparatus be positioned at requirement and carry out the sodium technology room side of sodium pressure ignition alleviation。
Sodium pressure ignition relieving apparatus of the present utility model is closed at ordinary times, when there is sodium fire accident, if pressure reaches limit value set in advance in technique, instantaneous pressure produced by accident will push decoration panel and seal cover board open, it is discharged between adjacent process, thus effectively alleviating the thermokinetics consequence of vaporific sodium fire, it is prevented that the vaporific sodium fire instantaneous pressure destruction to building enclosures such as building and ventilation shafts。After in technique, pressure reduces, seal cover board is automatically switched off under gravity, permanent magnet and adhesive material adhesive, with the seal between guarantee accident technique, avoid fire-suppressant gas excessive bleed and fresh air such as enters between accident technique in a large number at the generation of negative issue, can effectively prevent sodium fire resume combustion, thus the coverage by sodium fire accident is limited in same fire compartment。
In sum, sodium pressure ignition relieving apparatus of the present utility model adopts passive design, and reliability is high；Good airproof performance, effectively reduces radiosodium aerosol and leaks the probability of environment；The good compatibility is had with sodium fire fire-fighting system；Avoid the instantaneous pressure at the sodium fire initial stage destruction to fast reactor facility, improve sodium-cooled fast reactor protective capacities in sodium fire accident, it is ensured that the safety of fast reactor。
Accompanying drawing explanation
Fig. 1 sodium of the present utility model pressure ignition relieving apparatus schematic diagram。
Fig. 2 sodium of the present utility model pressure ignition relieving apparatus operation principle schematic diagram。
Fig. 3 sodium of the present utility model pressure ignition relieving apparatus arrangement example。
Accompanying drawing labelling: 1. decoration panel, 2. body of wall penetration piece, 3. seal cover board, 4. connector, 5. permanent magnet, 6. cover plate framework。
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further。
Embodiment 1
As shown in Figure 3, between fast reactor sodium technology room A and B, B and C, it is respectively arranged sodium pressure ignition relieving apparatus as shown in Figure 1。
When between technique, vaporific sodium fire accident occurs B, between technique, in B, pressure rises rapidly。When pressure rises above the unlatching pressure limit of sodium pressure ignition relieving apparatus, decoration panel and seal cover board are open, and between technique, B carries out pressure release to A, C between adjacent process, and its principle is as shown in Figure 2。Subsequently, when when between technique, in B, pressure is reduced within limit value, sodium pressure ignition relieving apparatus is automatically switched off。
If in B, pressure is increased beyond the unlatching pressure limit of sodium pressure ignition relieving apparatus again between technique, then sodium pressure ignition relieving apparatus automatically turns on pressure release again, so until pressure stability is within limit value in accident technique。
Claims (4)
1. a sodium pressure ignition relieving apparatus, it is characterised in that: described sodium pressure ignition relieving apparatus includes decoration panel, seal cover board and cover plate framework；Described decoration panel is connected by body of wall penetration piece and cover plate framework are fixing；Described seal cover board upper limb is connected with cover plate framework upper side frame by connector, and seal cover board can rotate with connector place for axle, to realize its unlatching and Guan Bi；Described seal cover board lower edge is provided with permanent magnet, and cover plate framework lower frame is provided with the adhesive material attracted with permanent magnet generation。
2. sodium pressure ignition relieving apparatus as claimed in claim 1, it is characterised in that: described seal cover board is additionally provided with counterweight。
3. sodium pressure ignition relieving apparatus as claimed in claim 1, it is characterised in that: described adhesive material is the material comprising ferrum, cobalt or nickel。
4. sodium pressure ignition relieving apparatus as claimed in claim 1, it is characterised in that: described adhesive material is ferrum。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521040589.4U CN205334970U (en) | 2015-12-15 | 2015-12-15 | Device is alleviated to sodium fire pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521040589.4U CN205334970U (en) | 2015-12-15 | 2015-12-15 | Device is alleviated to sodium fire pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205334970U true CN205334970U (en) | 2016-06-22 |
Family
ID=56212849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521040589.4U Withdrawn - After Issue CN205334970U (en) | 2015-12-15 | 2015-12-15 | Device is alleviated to sodium fire pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205334970U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355238A (en) * | 2015-12-15 | 2016-02-24 | 中国原子能科学研究院 | Sodium fire pressure relieving device and method |
-
2015
- 2015-12-15 CN CN201521040589.4U patent/CN205334970U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355238A (en) * | 2015-12-15 | 2016-02-24 | 中国原子能科学研究院 | Sodium fire pressure relieving device and method |
| CN105355238B (en) * | 2015-12-15 | 2018-05-22 | 中国原子能科学研究院 | A kind of sodium pressure ignition alleviates device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160622 Effective date of abandoning: 20180522 |
|
| AV01 | Patent right actively abandoned |