CN207731671U - A kind of two-sided cooling annular fuel rod with wrapping wire - Google Patents
A kind of two-sided cooling annular fuel rod with wrapping wire Download PDFInfo
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- CN207731671U CN207731671U CN201721772732.8U CN201721772732U CN207731671U CN 207731671 U CN207731671 U CN 207731671U CN 201721772732 U CN201721772732 U CN 201721772732U CN 207731671 U CN207731671 U CN 207731671U
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- annular fuel
- fuel rod
- wrapping wire
- sided cooling
- end plug
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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 provides a kind of two-sided cooling annular fuel rod with wrapping wire, which includes upper end plug, lower end plug, interior involucrum, outer envelope, annular fuel pellet；Wherein, the cavity that interior involucrum and outer envelope are nested to form is used for accommodating annular fuel pellet, and upper end plug, the lower end plug of lower section connection are connected above interior involucrum and outer envelope；It winds 1 or more wrapping wires in the outer surface of outer envelope, i.e. wrapping wire is wound on outer envelope outer surface in the shape of a spiral；The wrapping wire both ends are separately fixed at upper end plug and lower end beyond the Great Wall.Two-sided cooling annular fuel rod described in the utility model with wrapping wire, the wrapping wire being wound on outside annular fuel rod, have the function of obviously increasing coolant lateral flow, enhance fuel rod to coolant heat-transfer effect, more passage of heat heats are taken away by coolant flow-disturbing, fuel rod temperature is reduced, DNBR is improved, enhances fuel rod safety.
Description
Technical field
The utility model is related to technical field of nuclear power, and in particular to a kind of fuel rod carrying wrapping wire further to one kind
Two-sided cooling annular fuel rod.
Background technology
In nuclear power plant reactor operational process, the performance of nuclear fuel be influence nuclear reactor safety and economy it is important because
Element.Therefore the research of fuel element is placed on status very outstanding always in the world, by optimizing fuel element design, using
The methods of advanced configuration material, improvement component manufacturing process, are continuously improved the various performances of nuclear fuel element, promote nuclear power to more
Safe and more economical direction is developed.
Usual nuclear fuel is designed as solid cylindrical, is made of upper and lower end plug, pellet, holddown spring and involucrum, cold
But agent is flowed through outside involucrum, is cooled down to fuel rod.
Existing PWR fuel assembly design in, fuel rod generally using grid spacer be clamped it is hanging by the way of, down tube
Seat supports entire fuel assembly by control rod guide pipe.Requirement of this design to grid spacer is relatively high.It is transported in reactor
In the capable end of term, since the chucking power of the spring of the effect clamping fuel rod of irradiation can strongly reduce, fuel rod can generally be fallen under
On tube socket, under the mobilization of coolant, fuel rod may upper and lower play, this can lead to the risk of fuel rod breakage.
Compared with traditional solid cylindrical fuel, the benefit of annular fuel is under very high linear density, in fuel
The temperature of the heart is still very low, and the energy storage in fuel is less, and fission gas release is less.Under expectable normal operation and transient condition
Fuel performance is preferable.
In existing Experiment Fast Reactor fuel element, fuel rod clad pipe appearance has used stainless steel wrap wire structure, by fuel rod
Cladding tubes are isolated and are positioned, so that coolant Na can be flowed from the spiral shape cavity that wrapping wire between fuel rod clad pipe is formed
It crosses, forms the heat that coolant liquid circulation loop takes away reactor release.It there are no the text that winding structure is carried outside annular fuel rod
Offer report.Meanwhile annular fuel rod is significantly different with fast reactor fuel rod from structure to material, it can not be by the wrapping wire of fast reactor fuel rod
Mode is directly used in outside annular fuel rod.
Invention content
The purpose of this utility model is to provide one kind capable of reducing fuel rod temperature, improves DNBR, enhancing fuel rod peace
Quan Xing, and the two-sided cooling annular fuel rod with wrapping wire easy to process simple in structure,
Realize the technical solution of the utility model aim：A kind of two-sided cooling annular fuel rod with wrapping wire, the annular
Fuel rod includes upper end plug, lower end plug, interior involucrum, outer envelope, annular fuel pellet；What its interior involucrum and outer envelope were nested to form
Cavity is used for accommodating annular fuel pellet, and upper end plug, the lower end plug of lower section connection are connected above interior involucrum and outer envelope；In outer envelope
Outer surface wind 1 or more wrapping wires, i.e. wrapping wire is wound on outer envelope outer surface in the shape of a spiral；The wrapping wire both ends difference
It is fixed on upper end plug and lower end beyond the Great Wall.
A kind of two-sided cooling annular fuel rod with wrapping wire as described above, described in wrapping wire one end pass through welding side
Formula is fixed on lower end beyond the Great Wall；Another end is fixed on by welding manner in upper end plug.
A kind of two-sided cooling annular fuel rod with wrapping wire as described above, described in annular fuel rod lower end plug
It is fixed on bottom nozzle by eyelets.
A kind of two-sided cooling annular fuel rod with wrapping wire as described above, described in annular fuel rod lower end plug
It is fixed on bottom nozzle by eyelets, which is connected to the outer surface of lower end plug, and tubulose is solid
It includes that spiral is connected, snapped connection, C-shaped ring or pin connect to determine the fixed form that part lower end is fixed on bottom nozzle.
A kind of two-sided cooling annular fuel rod with wrapping wire as described above, described in eyelets on or under
End plug is avoided being provided with 2 to 6 side opening at welding position, and it is end plug stream from the bottom up to prevent stifled stream, coolant.
A kind of two-sided cooling annular fuel rod with wrapping wire as described above, described in upper end plug on can be arranged 1
Air-filled pore pours helium by what the inside involucrum of the air-filled pore and outer envelope were nested to form for accommodating in the cavity of fuel pellet
Gas.
A kind of two-sided cooling annular fuel rod with wrapping wire as described above, the screw pitch and annular fuel of the wrapping wire
The lenth ratio of stick is 1：(4~8).
A kind of two-sided cooling annular fuel rod with wrapping wire as described above, described in the outer surface of outer envelope wind
1~3 wrapping wire；1~the 4mm of wrapping wire diameter.
A kind of two-sided cooling annular fuel rod with wrapping wire as described above, described in around wire material be zircaloy.
A kind of two-sided cooling annular fuel rod with wrapping wire as described above, described in annular fuel rod length with it is interior
Involucrum internal diameter ratio is (400~600)：1, annular fuel rod length is (200~350) with outer envelope outer diameter ratio：1；
A kind of two-sided cooling annular fuel rod with wrapping wire as described above, described in interior involucrum outer surface and ring
The internal surface gaps of shape fuel pellet are 0.02~0.1mm；The inner surface of the outer envelope and the appearance of annular fuel pellet
Face gap is 0.03~0.15mm.
A kind of two-sided cooling annular fuel rod with wrapping wire as described above, described in annular fuel pellet upper end pacify
Equipped with holddown spring.
A kind of two-sided cooling annular fuel rod with wrapping wire as described above, described in holddown spring one end withstand on ring
On shape fuel pellet, the other end is withstood in upper end plug, and under the thrust of holddown spring, annular fuel pellet is pressed on lower end
Beyond the Great Wall.
A kind of two-sided cooling annular fuel rod with wrapping wire as described above, described in annular fuel rod heat transfer area
It is 0.6-2 with volume of fuel ratio.
A kind of two-sided cooling annular fuel rod with wrapping wire as described above, described in annular fuel rod highest average
Power is 30-50kW/m；Annular fuel pellet maximum temperature is reduced to 500 DEG C.
A kind of annular fuel component described in the utility model, the annular fuel component include upper tube socket, bottom nozzle, annular
Fuel rod, described in annular fuel rod use a kind of any of the above-described two-sided cooling annular fuel rod with wrapping wire.
A kind of annular fuel component as described above, the fuel assembly include the more two-sided cooling annular combustions with wrapping wire
Charge bar, these are positioned over two-sided cooling annular fuel rods of wrapping wire in coaming plate or fuel cassette, coaming plate or fuel cassette upper end with
Upper tube socket is connected directly, and coaming plate or fuel cassette lower end are directly connected to bottom nozzle.
A kind of annular fuel component as described above, it is two-sided cold with wrapping wire described in 12 × 12 to 17 × 17
But annular fuel rod is positioned in coaming plate or fuel cassette, and wrapping wire is dislocation arrangement between adjacent annular fuel rod.
The effect of the utility model is：Two-sided cooling annular fuel rod described in the utility model with wrapping wire, around
The wrapping wire outside annular fuel rod is made, has the function of obviously increasing coolant lateral flow, enhancing fuel rod to coolant
Heat-transfer effect takes away more passage of heat heats by coolant flow-disturbing, reduces fuel rod temperature, improve DNBR, enhances fuel rod
Safety.Two-sided cooling annular fuel rod described in the utility model with wrapping wire, the two-sided cooling of energy are that is, inside and outside to have
Coolant circulates, and is cooled down to fuel rod.Compared with existing PWR Fuel stick structure, fuel heat transfer area increases 50%,
Fuel pellet maximum temperature reduces 1000 DEG C, and linear power density increases 20%~50%, and flow resistance reduces 20%.This practicality
The two-sided cooling annular fuel rod of new design is attached by welding manner with certain intensity and easy to process.This reality
It is fixed on bottom nozzle by eyelets with New Ring-like Type fuel rod, avoids the spring that fuel rod is clamped in operational process
Chucking power reduce, cause fuel rod fall on bottom nozzle damage fuel rod the problem of, prevent coolant by fuel assembly to
Play above and below fuel rod, avoids result in the risk of fuel rod breakage when upper flowing.It is described in the utility model double with wrapping wire
Face cools down the fuel assembly of annular fuel rod, due to winding wrapping wire, no grid spacer, by being arranged at more outside outer envelope
Radially constraint fuel rod, fuel rod when assembling are not easy that outer envelope is caused to damage the coaming plate (or fuel cassette) of annular fuel rod ambient external
Wound.
Description of the drawings
Fig. 1 is a kind of two-sided cooling annular fuel rod schematic diagram with wrapping wire of the utility model.
Fig. 2 is a kind of two-sided cooling annular fuel rod sectional view with wrapping wire of the utility model.
In figure：1. upper end plug；Involucrum in 2.；3. outer envelope；4. holddown spring；5. annular fuel pellet；6. lower end plug；7.
Eyelets；8. air-filled pore；9. wrapping wire.
Specific implementation mode
In the following with reference to the drawings and specific embodiments to a kind of two-sided cooling annular with wrapping wire described in the utility model
Fuel rod is further described.
Embodiment 1
As depicted in figs. 1 and 2, a kind of two-sided cooling annular fuel rod with wrapping wire described in the utility model, the ring
Shape fuel rod includes upper end plug 1, lower end plug 6, interior involucrum 2, outer envelope 3, annular fuel pellet 5；Wherein, interior involucrum 2 and outsourcing
The cavity that shell 3 is nested to form is used for accommodating annular fuel pellet 5, and 3 top connection upper end plug 1 of interior involucrum 2 and outer envelope, lower section connect
Connect lower end plug 6；
1 wrapping wire 9 is wound in the outer surface of outer envelope 3, i.e. wrapping wire 9 is wound on 3 outer surface of outer envelope in the shape of a spiral.It is described
9 one end of wrapping wire be fixed on lower end plug 6 by welding manner；Another end is fixed on by welding manner in upper end plug 1.
On the eyelets 7 or lower end plug 6 is avoided being provided with 2 to 6 side opening at welding position, prevents from blocking up
Stream, coolant are end plug stream from the bottom up.
The screw pitch of the wrapping wire and the lenth ratio of annular fuel rod are 1：4.It is described around wire material be zircaloy；Wrapping wire
Diameter 2mm.
Annular fuel rod length is 500 with interior involucrum internal diameter ratio：1, annular fuel rod length is with outer envelope outer diameter ratio
300：1；The outer surface of the interior involucrum and the internal surface gaps of annular fuel pellet are 0.08mm；The outer envelope it is interior
Surface and the outer surface gap of annular fuel pellet are 0.1mm.
The annular fuel pellet upper end is equipped with holddown spring.1 air-filled pore 8 is set in the upper end plug 1, is led to
It crosses in the cavity for accommodating fuel pellet that the inside involucrum of the air-filled pore and outer envelope are nested to form and pours helium.
The annular fuel rod heat transfer area is 0.6-2 with volume of fuel ratio；Annular fuel rod highest average power is
30-50kW/m；5 maximum temperature of annular fuel pellet is reduced to 500 DEG C.
Embodiment 2
As depicted in figs. 1 and 2, a kind of two-sided cooling annular fuel rod with wrapping wire described in the utility model, the ring
Shape fuel rod includes upper end plug 1, lower end plug 6, interior involucrum 2, outer envelope 3, annular fuel pellet 5；Wherein, interior involucrum 2 and outsourcing
The cavity that shell 3 is nested to form is used for accommodating annular fuel pellet 5, and 3 top connection upper end plug 1 of interior involucrum 2 and outer envelope, lower section connect
Connect lower end plug 6；
3 wrapping wires 9 are wound in the outer surface of outer envelope 3, i.e. wrapping wire 9 is wound on 3 outer surface of outer envelope in the shape of a spiral.It is described
9 one end of wrapping wire be fixed on lower end plug 6 by welding manner；Another end is fixed on by welding manner in upper end plug 1.
The lower end plug 6 of the annular fuel rod is fixed on by eyelets 7 on bottom nozzle.The eyelets 7
Upper end spiral is connected to the outer surface of lower end plug 6, and it includes spiral that 7 lower end of eyelets, which is fixed on the fixed form on bottom nozzle,
It connects, snap connection, the connection of C-shaped ring or pin.
2 to 6 side opening are provided on the eyelets 7, it is end plug stream from the bottom up to prevent stifled stream, coolant.
The screw pitch of the wrapping wire and the lenth ratio of annular fuel rod are 1：6.It is described around wire material be zircaloy；Wrapping wire
Diameter 1mm.
1 air-filled pore 8 can be set in the upper end plug 1, be nested to form by the inside involucrum of the air-filled pore and outer envelope
Pour helium for accommodating in the cavity of fuel pellet.
Annular fuel rod length is 400 with interior involucrum internal diameter ratio：1, annular fuel rod length is with outer envelope outer diameter ratio
200：1；The outer surface of the interior involucrum and the internal surface gaps of annular fuel pellet are 0.02mm；The outer envelope it is interior
Surface and the outer surface gap of annular fuel pellet are 0.03mm.
The annular fuel pellet upper end is equipped with holddown spring.Described holddown spring one end withstands on annular fuel core
On block, the other end is withstood in upper end plug, and under the thrust of holddown spring, annular fuel pellet is pressed on lower end beyond the Great Wall.
The annular fuel rod heat transfer area is 0.6-2 with volume of fuel ratio；Annular fuel rod highest average power is
30-50kW/m；5 maximum temperature of annular fuel pellet is reduced to 500 DEG C.
Embodiment 3
As depicted in figs. 1 and 2, a kind of two-sided cooling annular fuel rod with wrapping wire described in the utility model, the ring
Shape fuel rod includes upper end plug 1, lower end plug 6, interior involucrum 2, outer envelope 3, annular fuel pellet 5；Wherein, interior involucrum 2 and outsourcing
The cavity that shell 3 is nested to form is used for accommodating annular fuel pellet 5, and 3 top connection upper end plug 1 of interior involucrum 2 and outer envelope, lower section connect
Connect lower end plug 6；
3 wrapping wires 9 are wound in the outer surface of outer envelope 3, i.e. wrapping wire 9 is wound on 3 outer surface of outer envelope in the shape of a spiral：It is described
9 one end of wrapping wire be fixed on lower end plug 6 by welding manner；Another end is fixed on by welding manner in upper end plug 1.
The screw pitch of the wrapping wire and the lenth ratio of annular fuel rod are 1：8.It is described around wire material be zircaloy；Wrapping wire
Diameter 4mm.
Annular fuel rod length is 600 with interior involucrum internal diameter ratio：1, annular fuel rod length is with outer envelope outer diameter ratio
350：1；The outer surface of the interior involucrum and the internal surface gaps of annular fuel pellet are 0.1mm；The outer envelope it is interior
Surface and the outer surface gap of annular fuel pellet are 0.15mm.
The annular fuel pellet upper end is equipped with holddown spring.1 air-filled pore is set in the upper end plug 1, is led to
It crosses in the cavity for accommodating fuel pellet that the inside involucrum of the air-filled pore and outer envelope are nested to form and pours helium.
The annular fuel rod heat transfer area is 0.6-2 with volume of fuel ratio；Annular fuel rod highest average power is
30-50kW/m；5 maximum temperature of annular fuel pellet is reduced to 500 DEG C.
Embodiment 4
A kind of annular fuel component comprising upper tube socket, bottom nozzle, annular fuel rod.The annular fuel rod uses
Two-sided cooling annular fuel rod described in embodiment 1 with wrapping wire, the annular fuel component include 12 × 12 with wrapping wire
Two-sided cooling annular fuel rod, these are positioned over two-sided cooling annular fuel rods of wrapping wire in coaming plate, coaming plate upper end with it is upper
Tube socket is connected directly, and coaming plate lower end is directly connected to bottom nozzle.
Wrapping wire is dislocation arrangement between adjacent annular fuel rod in coaming plate.
The two-sided cooling annular fuel rod with wrapping wire is fixed on by eyelets 7 on bottom nozzle.The pipe
Shape fixing piece upper end spiral is connected to the outer surface of lower end plug 6, and eyelets lower end is fixed on bottom nozzle, fixed form packet
Include spiral connect, snap connection, C-shaped ring or pin connection.
Embodiment 5
A kind of annular fuel component comprising upper tube socket, bottom nozzle, annular fuel rod.The annular fuel rod uses
Embodiment 2 or the two-sided cooling annular fuel rod described in embodiment 3 with wrapping wire, the annular fuel component include 17 × 17
Two-sided cooling annular fuel rod with wrapping wire, these two-sided cooling annular fuel rods with wrapping wire are positioned in fuel cassette,
Fuel cassette upper end is connected directly with upper tube socket, and fuel cassette lower end is directly connected to bottom nozzle.
Wrapping wire is dislocation arrangement between adjacent annular fuel rod in fuel cassette.
Claims (18)
1. a kind of two-sided cooling annular fuel rod with wrapping wire, which includes upper end plug (1), lower end plug (6), interior
Involucrum (2), outer envelope (3), annular fuel pellet (5)；It is characterized in that：The sky that interior involucrum (2) and outer envelope (3) are nested to form
Chamber is used for accommodating annular fuel pellet (5), upper end plug (1) is connected above interior involucrum (2) and outer envelope (3), lower section connects lower end
It fills in (6)；1 or more wrapping wires (9) are wound in the outer surface of outer envelope (3), i.e. wrapping wire (9) is wound on outer envelope in the shape of a spiral
(3) outer surface；The wrapping wire both ends are separately fixed on upper end plug (1) and lower end plug (6).
2. a kind of two-sided cooling annular fuel rod with wrapping wire according to claim 1, it is characterised in that：It is described around
Silk (9) one end is fixed on by welding manner on lower end plug (6)；Another end is fixed on by welding manner in upper end plug (1).
3. a kind of two-sided cooling annular fuel rod with wrapping wire according to claim 1, it is characterised in that：The ring
The lower end plug (6) of shape fuel rod is fixed on by eyelets (7) on bottom nozzle.
4. a kind of two-sided cooling annular fuel rod with wrapping wire according to claim 3, it is characterised in that：The ring
The lower end plug of shape fuel rod is fixed on by eyelets (7) on bottom nozzle, which is connected to
The outer surface of lower end plug (6), it includes spiral connection, buckle that eyelets (7) lower end, which is fixed on the fixed form on bottom nozzle,
Connection, C-shaped ring or pin connection.
5. a kind of two-sided cooling annular fuel rod with wrapping wire according to claim 3, it is characterised in that：The pipe
On shape fixing piece (7) or lower end plug (6) is avoided being provided with 2 to 6 side opening at welding position, prevents stifled stream, coolant be from
Lower past upper end plug stream.
6. a kind of two-sided cooling annular fuel rod with wrapping wire according to claim 1, it is characterised in that：Described is upper
1 air-filled pore (8) can be set on end plug (1), fired by what the inside involucrum of the air-filled pore and outer envelope were nested to form for accommodating
Expect to pour helium in the cavity of pellet.
7. a kind of two-sided cooling annular fuel rod with wrapping wire according to claim 1, it is characterised in that：The wrapping wire
(9) lenth ratio of screw pitch and annular fuel rod is 1：(4~8).
8. a kind of two-sided cooling annular fuel rod with wrapping wire according to claim 1, it is characterised in that：Described is outer
The outer surface of involucrum (3) winds 1~3 wrapping wire (9)；1~the 4mm of wrapping wire diameter.
9. a kind of two-sided cooling annular fuel rod with wrapping wire according to claim 1, it is characterised in that：It is described around
Silk (9) material is zircaloy.
10. a kind of two-sided cooling annular fuel rod with wrapping wire according to claim 1, it is characterised in that：Described
Annular fuel rod length is (400~600) with interior involucrum internal diameter ratio：1, annular fuel rod length is (200 with outer envelope outer diameter ratio
~350)：1.
11. a kind of two-sided cooling annular fuel rod with wrapping wire according to claim 1, it is characterised in that：Described
The outer surface of interior involucrum and the internal surface gaps of annular fuel pellet are 0.02~0.1mm；The inner surface of the outer envelope with
The outer surface gap of annular fuel pellet is 0.03~0.15mm.
12. a kind of two-sided cooling annular fuel rod with wrapping wire according to claim 1, it is characterised in that：Described
Annular fuel pellet (5) upper end is equipped with holddown spring (4).
13. a kind of two-sided cooling annular fuel rod with wrapping wire according to claim 12, it is characterised in that：Described
Holddown spring (4) one end is withstood on annular fuel pellet (5), and the other end is withstood in upper end plug (1), in pushing away for holddown spring (4)
Under force effect, annular fuel pellet (5) is pressed on lower end beyond the Great Wall.
14. a kind of two-sided cooling annular fuel rod with wrapping wire according to claim 1, it is characterised in that：Described
Annular fuel rod heat transfer area is 0.6-2 with volume of fuel ratio.
15. a kind of two-sided cooling annular fuel rod with wrapping wire according to claim 1, it is characterised in that：Described
Annular fuel rod highest average power is 30-50kW/m；Annular fuel pellet (5) maximum temperature is reduced to 500 DEG C.
16. a kind of annular fuel component, which includes upper tube socket, bottom nozzle, annular fuel rod, and feature exists
In：The annular fuel rod uses claim 1 to 15 any two-sided cooling annular fuel rod with wrapping wire.
17. a kind of annular fuel component according to claim 16, it is characterised in that：The fuel assembly includes more and carries
The two-sided cooling annular fuel rod of wrapping wire, these two-sided cooling annular fuel rods with wrapping wire are positioned over coaming plate or fuel cassette
Interior, coaming plate or fuel cassette upper end are connected directly with upper tube socket, and coaming plate or fuel cassette lower end are directly connected to bottom nozzle.
18. a kind of annular fuel component according to claim 16, it is characterised in that：Described in 12 × 12 to 17 × 17
The two-sided cooling annular fuel rod with wrapping wire be positioned in coaming plate or fuel cassette, wrapping wire is wrong between adjacent annular fuel rod
Position arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721772732.8U CN207731671U (en) | 2017-12-19 | 2017-12-19 | A kind of two-sided cooling annular fuel rod with wrapping wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721772732.8U CN207731671U (en) | 2017-12-19 | 2017-12-19 | A kind of two-sided cooling annular fuel rod with wrapping wire |
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| Publication Number | Publication Date |
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| CN207731671U true CN207731671U (en) | 2018-08-14 |
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ID=63098842
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| CN201721772732.8U Active CN207731671U (en) | 2017-12-19 | 2017-12-19 | A kind of two-sided cooling annular fuel rod with wrapping wire |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109935371A (en) * | 2017-12-19 | 2019-06-25 | 中国原子能科学研究院 | A kind of two-sided cooling annular fuel rod with wrapping wire |
| CN110232979A (en) * | 2019-06-13 | 2019-09-13 | 西安交通大学 | A kind of open grid type air cooling nuclear reactor for space reactor core |
| CN111341476A (en) * | 2018-12-19 | 2020-06-26 | 中核建中核燃料元件有限公司 | Device and method for rotary pressing positioning spring of nuclear fuel rod |
-
2017
- 2017-12-19 CN CN201721772732.8U patent/CN207731671U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109935371A (en) * | 2017-12-19 | 2019-06-25 | 中国原子能科学研究院 | A kind of two-sided cooling annular fuel rod with wrapping wire |
| CN109935371B (en) * | 2017-12-19 | 2024-07-02 | 中国原子能科学研究院 | Double-sided cooling annular fuel rod with wire winding |
| CN111341476A (en) * | 2018-12-19 | 2020-06-26 | 中核建中核燃料元件有限公司 | Device and method for rotary pressing positioning spring of nuclear fuel rod |
| CN110232979A (en) * | 2019-06-13 | 2019-09-13 | 西安交通大学 | A kind of open grid type air cooling nuclear reactor for space reactor core |
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