CN114776758B - Spent fuel tank fall protection device - Google Patents
Spent fuel tank fall protection device Download PDFInfo
- Publication number
- CN114776758B CN114776758B CN202210355771.7A CN202210355771A CN114776758B CN 114776758 B CN114776758 B CN 114776758B CN 202210355771 A CN202210355771 A CN 202210355771A CN 114776758 B CN114776758 B CN 114776758B
- Authority
- CN
- China
- Prior art keywords
- fuel tank
- spent fuel
- plate
- protection device
- cover plate
- 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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Links
- 239000002915 spent fuel radioactive waste Substances 0.000 title claims abstract description 82
- 230000035939 shock Effects 0.000 claims abstract description 38
- 238000013016 damping Methods 0.000 claims abstract description 19
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 239000011150 reinforced concrete Substances 0.000 claims description 10
- 239000004567 concrete Substances 0.000 claims description 6
- 239000004793 Polystyrene Substances 0.000 claims description 4
- 229920002223 polystyrene Polymers 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 4
- 206010048886 Onychoclasis Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a spent fuel tank fall protection device which comprises a bottom plate, side plates, a damping structure and a cover plate; the side plates are connected to the periphery of the bottom plate in a surrounding mode, and an accommodating space for accommodating the damping structure is defined on the bottom plate; the shock absorption structure is filled in the accommodating space and is used for absorbing impact energy of falling of the spent fuel tank; the cover plate is detachably matched with the top of the side plate to seal the accommodating space. The invention relates to a spent fuel tank fall protection device which is used for being positioned at a floor slab of a loading and unloading room; the shock-absorbing structure is used for absorbing the impact energy of the spent fuel tank falling, the cover plate at the top is detachably arranged, replacement, repair and the like are conveniently carried out after the impact of the spent fuel tank is damaged, the engineering cost is reduced, the quick repair of the operation of a nuclear power plant is ensured, the safe combination of the spent fuel tank and a protection device is effectively realized, and the applicable falling height range is wide.
Description
Technical Field
The invention relates to the technical field of equipment protection in nuclear power plants, in particular to a spent fuel tank falling protection device.
Background
The fall protection of spent fuel tanks in nuclear power plants is an important consideration for the structural design of the nuclear power plants. At present, a mode of limiting the falling height of the spent fuel tank is commonly adopted in a nuclear power plant, so that the safety of a spent fuel tank body is ensured, the impact energy of the falling of the spent fuel tank is limited, and meanwhile, a damping structure is arranged in a loading and unloading chamber, a loading well and a cleaning well, so that the safety protection is realized, and the vibration effect caused by impact is reduced.
However, the shock-absorbing structure is generally directly fixed at the bottom of the loading and unloading chamber, loading well or cleaning well, which is poor in repairability, occupies the space of the bottom surface, and the space above the shock-absorbing structure is difficult to use, so that the space is wasted greatly.
Therefore, the existing protection mode has defects in terms of lifting height of the spent fuel tank and repairability of the shock absorption structure, and can not completely meet the requirements of drop protection design of the spent fuel tank of the nuclear power plant under new situation.
Disclosure of Invention
The invention aims to solve the technical problem of providing a spent fuel tank drop protection device with good repairability.
The technical scheme adopted for solving the technical problems is as follows: providing a spent fuel tank fall protection device for positioning at a floor of a loading and unloading chamber; the spent fuel tank fall protection device comprises a bottom plate, side plates, a damping structure and a cover plate;
The side plates are connected to the periphery of the bottom plate in a surrounding mode, and an accommodating space for accommodating the damping structure is defined on the bottom plate; the shock absorption structure is filled in the accommodating space and is used for absorbing impact energy of falling of the spent fuel tank;
The cover plate is detachably matched with the top of the side plate to seal the accommodating space.
Preferably, the damping structure comprises a damping body formed by stacking a plurality of autoclaved aerated concrete blocks.
Preferably, the shock absorbing structure further comprises a flat structural layer disposed on the shock absorbing body.
Preferably, the flat structure layer is made of polystyrene.
Preferably, the thickness of the shock absorbing structure is 900mm-2200mm.
Preferably, the bottom plate, the side plates and the cover plate are all made of reinforced concrete.
Preferably, a tongue-and-groove is arranged at the top of the side plate, and the peripheral end of the cover plate is matched in the tongue-and-groove.
Preferably, the thickness of the cover plate is 400mm-800mm.
Preferably, the spent fuel tank fall protection device further comprises a metal plate;
the metal plate is disposed on an inner surface of the bottom plate and supported below the shock absorbing structure.
Preferably, a hanging piece is arranged on the cover plate.
Preferably, the spent fuel tank fall protection device is connected below a floor of the loading and unloading chamber.
Preferably, the spent fuel tank fall protection device is mounted in place on a floor of the loading and unloading chamber.
The spent fuel tank fall protection device is used for being positioned at the floor of the loading and unloading chamber, and does not occupy the lower space while utilizing the upper space of the loading and unloading chamber, so that the utilization of equipment arrangement and the like of the lower space is not influenced; the shock-absorbing structure is used for absorbing the impact energy of the spent fuel tank falling, the cover plate at the top is detachably arranged, replacement, repair and the like are conveniently carried out after the impact of the spent fuel tank is damaged, the engineering cost is reduced, the quick repair of the operation of a nuclear power plant is ensured, the safe combination of the spent fuel tank and a protection device is effectively realized, and the applicable falling height range is wide.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic cross-sectional view of a spent fuel tank fall protection device according to an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view of a spent fuel tank fall protection device according to another embodiment of the invention.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
The spent fuel tank drop protection device is used for being positioned at the lifting position of the spent fuel tank, and enables the whole spent fuel tank drop protection device to be positioned in the upper space of the lifting position, so that the upper space is fully utilized, the lower space of the lifting position is not occupied, and the equipment arrangement and the like of the lower space are not affected.
The lifting position of the spent fuel tank comprises a loading and unloading chamber and the like.
As shown in fig. 1, the spent fuel tank fall protection device according to an embodiment of the present invention includes a bottom plate 10, a side plate 20, a shock absorbing structure 30, and a cover plate 40.
The side plate 20 is circumferentially connected to the outer periphery of the bottom plate 10, and defines a containing space on the bottom plate 10. The shock absorbing structure 30 is filled in the receiving space for absorbing impact energy of the spent fuel tank 100 falling. The cover plate 40 is detachably fitted on the top of the side plate 20 to close the accommodating space.
The bottom plate 10 and the side plate 20 are connected to form a shell structure of the spent fuel tank fall protection device, and play a main role in the structural strength, stability and the like of the whole spent fuel tank fall protection device.
The bottom plate 10 is used as a bottom supporting part of the whole spent fuel tank drop protection device, and mainly ensures that the structure is not damaged under various load bearing working conditions, and broken nails are not generated under the impact load. For this purpose, the base plate 10 is also required to have a certain thickness, which may be 800mm in general. Of course, the thickness can be increased or decreased appropriately according to the base plate 10 made of different materials and various practical requirements.
The side plates 20 are preferably vertically attached to the outer periphery of the bottom plate 20, and are integrally formed therewith. The thickness of the side plates 20 may be identical to the thickness of the bottom plate 20, but may be smaller or larger than the thickness of the bottom plate 10.
The base plate 20 may be a plate body having a circular, oval, polygonal, or the like shape. The side plate 20 may be formed of one side plate of a corresponding shape corresponding to the outer peripheral shape of the bottom plate 20, or may be formed of a plurality of sub-side plates connected in sequence.
In this embodiment, the spent fuel tank fall protection device is attached below the loading dock floor 110, forming an immovable fixture.
Specifically, the spent fuel tank fall protection device is suspended below the floor 110 by the top of its side panels 20 being connected to the floor 110 of the loading and unloading compartment without taking up the lower space of the loading and unloading compartment.
In a nuclear power plant, usually, a hoisting position of spent fuel such as a loading and unloading room is made of reinforced concrete material, namely a reinforced concrete structure. Thus, the bottom plate 10 and the side plates 20 can be integrally cast from reinforced concrete and integrally connected to the floor 110 of the loading and unloading chamber.
In terms of the preparation method, the bottom plate 10 and the side plate 20 can be directly cast in the loading and unloading chamber. Or the bottom plate 10 and the side plate 20 are prefabricated and assembled below the floor slab 110, and then the top of the side plate 20 is connected with the floor slab 110 by pouring.
The cover plate 40 is covered on the top of the side plate 20 and also covers the accommodating space formed between the bottom plate 10 and the side plate 20, and the shock absorbing structure 30 is enclosed in the accommodating space.
The outer peripheral shape of the cover plate 40 is set corresponding to the shape of the top of the side plate 20, for example, circular, elliptical or polygonal. And, the outer circumferential dimension of the cover plate 40 is larger than the inner circumferential dimension of the accommodating space surrounded by the side plates 20, so that the peripheral portion of the cover plate 40 can abut on the top of the side plates 20 to close the top of the whole accommodating space.
The cover plate 40 also forms part of the floor slab 110, the cover plate 40 bears the load such as the travelling load in the factory, in order to ensure that the shock absorbing structure 30 below the cover plate 40 is not damaged under the normal load, the size of the cover plate 40 is set according to the height of the spent fuel tank 100 which may fall, for example, the thickness of the cover plate 40 is set to 400mm-800mm. When the deck 40 is damaged by impact load, a new deck 40 can be directly replaced.
The cover 40 may be made of reinforced concrete, similarly to the bottom plate 10 and the side plates 20.
To achieve the removal of the cover 40 from the top of the side panels 20, the cover 40 may be placed directly on top of the side panels 20 without being attached to the side panels 20 by concrete casting or fasteners or the like. And in order to avoid the displacement of the cover plate 40, the top of the side plate 20 is provided with a tongue-and-groove 21, and the peripheral end of the cover plate 40 is matched in the tongue-and-groove 21.
It will be appreciated that the cover 20 and the top of the side plate 20 may be removably engaged by other male-female engagement means, snap-fit, etc.
In order to facilitate lifting of the cover plate 40, a lifting member (not shown) is arranged on the cover plate 40 for connecting lifting equipment to realize dismounting and lifting of the cover plate 40. The hanging piece can be a lifting lug, a hanging ring or a hanging hook and other structural members.
In addition, to ensure flatness of the floor slab 110, after the cover plate 40 is fitted on top of the side plate 20, the surface of the cover plate 40 facing away from the side plate 20 is flush with the surface of the floor slab 110.
The shock-absorbing structure 30 is filled in the receiving space defined by the bottom plate 10 and the side plate 20, and has a thickness corresponding to the depth of the receiving space. The shock absorbing structure 30 is primarily responsible for absorbing the impact energy from a drop of the spent fuel tank 100; after the failure, the deck 40 may be lifted to repair or update the shock absorbing structure 30.
The overall thickness of the shock absorbing structure 30 is designed to correspond to the drop height of the spent fuel tank 100, and may be, for example, 900mm to 2200mm.
The shock absorbing structure 30 further may include a shock absorbing body and a flat structural layer. The leveling structure layer is mainly arranged above the damping main body and used for guaranteeing the flatness of the whole damping structure 30 and facilitating the stable covering of the cover plate 40.
The damping main body comprises a plurality of autoclaved aerated concrete blocks which are overlapped from bottom to top in the accommodating space and are connected in a dry-laying mode.
The planarizing structure layer may be made of, and is not limited to, polystyrene.
For the shock absorbing structure 30, the thickness of the flat structure layer may be 50mm.
Further, the spent fuel tank fall protection device of the present embodiment further includes a metal plate 50. The metal plate 50 is disposed on the inner surface of the base plate 10 and supported below the shock absorbing structure 30. The metal plate 50 is disposed in the receiving space so that the thickness of the shock absorbing structure 30 can be reduced.
The metal plate 50 is preferably a steel plate.
In addition, in the accommodating space, the metal plate 50 can be connected with the bottom plate 10 and/or the side plate 20 through cement slurry, and forms a whole with the bottom plate 10 and/or the side plate 20 when the spent fuel tank fall protection device is impacted by the spent fuel tank 100, so that the impact load is ensured to uniformly act on the bottom plate 10, and the uniformity of stress is ensured.
Referring to fig. 1, when the spent fuel tank fall protection device of the present embodiment is manufactured, according to the actual to-be-applied lifting position of the spent fuel tank, the parts of the base plate 10, the cover plate 40, the shock-absorbing structure 30, etc. with the thickness meeting the requirement can be prepared in combination with various load conditions required to be born by the position and the height at which the spent fuel tank 100 may fall.
When the spent fuel tank drop protection device of the embodiment is used, after the cover plate 40 and the shock absorption structure 30 are damaged or damaged by impact load, the cover plate 40 is lifted off and replaced by a new cover plate, and the shock absorption structure 30 is replaced or repaired after the cover plate 40 is lifted off.
As shown in fig. 2, the spent fuel tank drop protection device according to another embodiment of the present invention includes a bottom plate 10, a side plate 20, a shock absorbing structure 30, and a cover plate 40.
The side plate 20 is circumferentially connected to the outer periphery of the bottom plate 10, and defines a containing space on the bottom plate 10. The shock absorbing structure 30 is filled in the receiving space for absorbing impact energy of the spent fuel tank 100 falling. The cover plate 40 is detachably fitted on the top of the side plate 20 to close the accommodating space.
The bottom plate 10 and the side plate 20 are connected to form a shell structure of the spent fuel tank fall protection device, and play a main role in the structural strength, stability and the like of the whole spent fuel tank fall protection device.
The bottom plate 10 is used as a bottom supporting part of the whole spent fuel tank drop protection device, and mainly ensures that the structure is not damaged under various load bearing working conditions, and broken nails are not generated under the impact load. For this purpose, the base plate 10 is also required to have a certain thickness, which may be 800mm in general. Of course, the thickness can be increased or decreased appropriately according to the base plate 10 made of different materials and various practical requirements.
The side plates 20 are preferably vertically attached to the outer periphery of the bottom plate 20, and are integrally formed therewith. The thickness of the side plate 20 may be identical to the thickness of the bottom plate 20, but may be smaller than the thickness of the bottom plate 10.
The base plate 20 may be a plate body having a circular, oval, polygonal, or the like shape. The side plate 20 may be formed of one side plate of a corresponding shape corresponding to the outer peripheral shape of the bottom plate 20, or may be formed of a plurality of sub-side plates connected in sequence.
Unlike the embodiment shown in fig. 1, in this embodiment the spent fuel tank fall protection device is removably mounted to the floor 110 positioned at the top of the loading bay, as a stand alone device relative to the floor 110.
In use, the spent fuel tank fall protection device is loaded and moved onto the loading and unloading chamber floor 110 by the transport vehicle.
In a nuclear power plant, usually, a hoisting position of spent fuel such as a loading and unloading room is made of reinforced concrete material, namely a reinforced concrete structure. Thus, both the bottom panel 10 and the side panels 20 can be integrally cast from reinforced concrete and, in use, cooperate with the loading and unloading bay floor 110.
The cover plate 40 is covered on the top of the side plate 20 and also covers the accommodating space formed between the bottom plate 10 and the side plate 20, and the shock absorbing structure 30 is enclosed in the accommodating space.
The outer peripheral shape of the cover plate 40 is set corresponding to the shape of the top of the side plate 20, for example, circular, elliptical or polygonal. And, the outer circumferential dimension of the cover plate 40 is larger than the inner circumferential dimension of the accommodating space surrounded by the side plates 20, so that the peripheral portion of the cover plate 40 can abut on the top of the side plates 20 to close the top of the whole accommodating space.
The cover 40 bears the load such as the travelling load in the factory building, and in order to ensure that the shock absorbing structure 30 below the cover 40 is not damaged under the normal load, the size of the cover 40 is set according to the height that the spent fuel tank 100 may fall, for example, the thickness of the cover 40 is set to 400mm-800mm. When the deck 40 is damaged by impact load, a new deck 40 can be directly replaced.
The cover 40 may be made of reinforced concrete, similarly to the bottom plate 10 and the side plates 20.
To achieve the removal of the cover 40 from the top of the side panels 20, the cover 40 may be placed directly on top of the side panels 20 without being attached to the side panels 20 by concrete casting or fasteners or the like. And in order to avoid the displacement of the cover plate 40, the top of the side plate 20 is provided with a tongue-and-groove 21, and the peripheral end of the cover plate 40 is matched in the tongue-and-groove 21.
In order to facilitate lifting of the cover plate 40, a lifting member (not shown) is arranged on the cover plate 40 for connecting lifting equipment to realize dismounting and lifting of the cover plate 40. The hanging piece can be a lifting lug, a hanging ring or a hanging hook and other structural members.
In addition, in order to ensure the flatness of the top of the spent fuel tank fall protection device, after the cover plate 40 is fitted on the top of the side plate 20, the surface of the cover plate 40 is flush with the surface of the side plate 20.
The shock-absorbing structure 30 is filled in the receiving space defined by the bottom plate 10 and the side plate 20, and has a thickness corresponding to the depth of the receiving space. The shock absorbing structure 30 is primarily responsible for absorbing the impact energy from a drop of the spent fuel tank 100; after the failure, the deck 40 may be lifted to repair or update the shock absorbing structure 30.
The overall thickness of the shock absorbing structure 30 is designed to correspond to the drop height of the spent fuel tank 100, and may be, for example, 900mm to 2200mm.
The shock absorbing structure 30 further may include a shock absorbing body and a flat structural layer. The leveling structure layer is mainly arranged above the damping main body and used for guaranteeing the flatness of the whole damping structure 30 and facilitating the stable covering of the cover plate 40.
The damping main body comprises a plurality of autoclaved aerated concrete blocks which are overlapped from bottom to top in the accommodating space and are connected in a dry-laying mode.
The planarizing structure layer may be made of, and is not limited to, polystyrene.
For the shock absorbing structure 30, the thickness of the flat structure layer may be 50mm.
Further, the spent fuel tank fall protection device of the present embodiment further includes a metal plate 50. The metal plate 50 is disposed on the inner surface of the base plate 10 and supported below the shock absorbing structure 30. The metal plate 50 is disposed in the receiving space so that the thickness of the shock absorbing structure 30 can be reduced. The metal plate 50 is preferably a steel plate.
In addition, in the accommodating space, the metal plate 50 can be connected with the bottom plate 10 and/or the side plate 20 through cement slurry, and forms a whole with the bottom plate 10 and/or the side plate 20 when the spent fuel tank fall protection device is impacted by the spent fuel tank 100, so that the impact load is ensured to uniformly act on the bottom plate 10, and the uniformity of stress is ensured.
Referring to fig. 2, when the spent fuel tank fall protection device of the present embodiment is manufactured, the base plate 10, the cover plate 40, the shock absorbing structure 30 and other parts with the required thickness can be prepared according to the actual lifting position of the spent fuel tank to be applied, and in combination with various load conditions required to be born by the position and the possible falling height of the spent fuel tank 100. The whole spent fuel tank fall protection device can be prefabricated and formed in a factory.
When the spent fuel tank fall protection device of the embodiment is used, before the spent fuel tank 100 is lifted, the whole spent fuel tank fall protection device is sent to a lifting position on the floor slab 110 through a trolley or a trolley, and the spent fuel tank 100 is lifted after being in place.
After or during use, when the cover plate 40 and the shock absorbing structure 30 are damaged or damaged by impact load, the cover plate 40 is lifted off and replaced by a new cover plate, and the shock absorbing structure 30 is replaced or repaired after the cover plate 40 is lifted off.
In summary, the spent fuel tank drop protection device is convenient to replace and repair after being impacted and damaged by the spent fuel tank, reduces the engineering cost, ensures the quick repair of the operation of a nuclear power plant, effectively realizes the safe combination of the spent fuel tank protection device and the protection device, and has wide applicable drop height range.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (2)
1. A spent fuel tank fall protection device, characterized by being positioned at a floor of a loading and unloading room; the spent fuel tank fall protection device is connected below a floor slab of the loading and unloading chamber; the spent fuel tank fall protection device comprises a bottom plate, side plates, a damping structure and a cover plate;
the side plates are connected to the periphery of the bottom plate in a surrounding mode, and an accommodating space for accommodating the damping structure is defined on the bottom plate; the top of the side plate is connected with the floor slab of the loading and unloading chamber and is suspended below the floor slab; the shock absorption structure is filled in the accommodating space and is used for absorbing impact energy of falling of the spent fuel tank;
the cover plate is detachably matched with the top of the side plate to seal the accommodating space; the top of the side plate is provided with a rabbet, and the peripheral end of the cover plate is matched in the rabbet;
The spent fuel tank fall protection device also comprises a metal plate; the metal plate is arranged on the inner surface of the bottom plate and is supported below the shock absorbing structure;
the damping structure comprises a damping main body formed by overlapping a plurality of autoclaved aerated concrete blocks and a flat structural layer arranged on the damping main body; the leveling structure layer is made of polystyrene, and the thickness of the damping structure is 900-2200 mm;
the bottom plate, the side plates and the cover plate are all made of reinforced concrete; the thickness of the cover plate is 400mm-800mm.
2. The spent fuel tank fall protection device according to claim 1, wherein a suspension member is provided on the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210355771.7A CN114776758B (en) | 2022-04-06 | 2022-04-06 | Spent fuel tank fall protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210355771.7A CN114776758B (en) | 2022-04-06 | 2022-04-06 | Spent fuel tank fall protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114776758A CN114776758A (en) | 2022-07-22 |
| CN114776758B true CN114776758B (en) | 2024-05-14 |
Family
ID=82427525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210355771.7A Active CN114776758B (en) | 2022-04-06 | 2022-04-06 | Spent fuel tank fall protection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN114776758B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD266875A1 (en) * | 1987-11-06 | 1989-04-12 | Freiberg Brennstoffinst | BEARING BASE FOR CORE FUEL CASSETTES |
| US6280127B1 (en) * | 2000-09-11 | 2001-08-28 | Gnb Gesellschaft Fur Nuklearbehalter Mbh | Shock absorber attachment for containers |
| CN103527706A (en) * | 2013-11-04 | 2014-01-22 | 绵阳市维博电子有限责任公司 | Damping device of spent fuel pool liquid level and temperature monitoring device |
| CN110767335A (en) * | 2019-10-08 | 2020-02-07 | 中国核电工程有限公司 | Method and device for coping with falling of spent fuel container and loading well/cleaning well |
-
2022
- 2022-04-06 CN CN202210355771.7A patent/CN114776758B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD266875A1 (en) * | 1987-11-06 | 1989-04-12 | Freiberg Brennstoffinst | BEARING BASE FOR CORE FUEL CASSETTES |
| US6280127B1 (en) * | 2000-09-11 | 2001-08-28 | Gnb Gesellschaft Fur Nuklearbehalter Mbh | Shock absorber attachment for containers |
| CN103527706A (en) * | 2013-11-04 | 2014-01-22 | 绵阳市维博电子有限责任公司 | Damping device of spent fuel pool liquid level and temperature monitoring device |
| CN110767335A (en) * | 2019-10-08 | 2020-02-07 | 中国核电工程有限公司 | Method and device for coping with falling of spent fuel container and loading well/cleaning well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114776758A (en) | 2022-07-22 |
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