CN104538065A - Connecting structure of limit type upper tube seat and guide tube - Google Patents
Connecting structure of limit type upper tube seat and guide tube Download PDFInfo
- Publication number
- CN104538065A CN104538065A CN201410821018.8A CN201410821018A CN104538065A CN 104538065 A CN104538065 A CN 104538065A CN 201410821018 A CN201410821018 A CN 201410821018A CN 104538065 A CN104538065 A CN 104538065A
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- CN
- China
- Prior art keywords
- guide pipe
- upper base
- syndeton
- rigid joint
- limiting tube
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
- G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
- G21C3/33—Supporting or hanging of elements in the bundle; Means forming part of the bundle for inserting it into, or removing it from, the core; Means for coupling adjacent bundles
- G21C3/332—Supports for spacer grids
-
- 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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention provides a connecting structure of a limit type upper tube seat and a guide tube. The connecting structure comprises an upper tube seat, a rigid joint and a limit tube, wherein a guide tube hole is formed in the upper tube seat, the inner diameter of the upper part of the guide tube hole is greater than that of the lower part of the guide tube hole, and a stepped plane is formed; the rigid joint comprises an insertion section and a bearing boss, wherein the insertion section is arranged at the upper part of the rigid joint, and the bearing boss is arranged at the lower part of the rigid joint; at least one position clamping block is arranged on the outer side of the insertion section, the bearing boss is used for limiting the upward movement of the rigid joint, and a guide tube connecting end is arranged at the lower end of the bearing boss and is used for connecting the guide tube; the limit tube is arranged between the upper tube seat and the rigid joint and is located above the stepped plane; at least one limit bulge is arranged at the lower end of the inner side of the limit tube and is used for limiting the downward movement of the position clamping block of the rigid joint. According to the connecting structure of the limit type upper tube seat and the guide tube, the guide tube and the upper tube seat can be disconnected by virtue of the rigid joint and the limit tube, so that the mounting and the dismounting are benefited, and the upper tube seat and the guide tube can be repeatedly dismounted and mounted.
Description
Technical field
The present invention relates to the syndeton design field of pressurized-water reactor fuel assembly, be specifically related to the syndeton of a kind of upper base and guide pipe.
Background technology
Pressurized-water reactor core is generally arranged in order by many fuel assemblies and forms, and fuel assembly is made up of some fuel rods, guide pipe parts, gauge pipe parts, screen work, upper bottom nozzle etc. usually.
Screen work is generally divided into top braces screen work, intermediate supports screen work and bottom support screen work, and fuel rod is wherein inserted in the clamping of these support grids, plays the effect of support.Top braces screen work, intermediate supports screen work are connected with guide pipe parts by mechanical connection manner or welding manner with bottom support screen work.Connected by the weight transmitting of fuel rod to guide pipe parts by these, guide pipe parts will bear axial load.Guide pipe parts are connected with upper bottom nozzle by the mode of machinery or welding, the same load transmitted from upper bottom nozzle.Therefore for the connection of guide pipe and upper base, the ability with certain bearing load is needed.
Parts connect to form fuel assembly by above-mentioned, enter reactor core and run.
In operational process, the situation that fuel rod is damaged or damage can be there is, now need refuelling rod.During refuelling rod need upper base to take off from assembly, therefore need the connection removing base and guide pipe.For welding connecting mode, the connection that weld pads could remove base and guide pipe be destroyed.But destroying solder joint often causes the damage of base or guide pipe even to damage, and causes base and guide pipe to reuse.This will cause larger loss to fuel assembly.
Have the syndeton of removable upper base and guide pipe at present in the world, as the patent CN200880017064.5 " syndeton of fuel assembly " of Mitsubishi Heavy Ind. Ltd.'s application.The removable connection that this patent proposes have employed the structure be threaded.But the difficulty of processing that is threaded is large, and in limited space, installing/dismounting is very difficult.
Those skilled in the art are devoted to the syndeton providing a kind of upper base and guide pipe, and processing is simple, and is easy to installing/dismounting.
Summary of the invention
For problems of the prior art, one object of the present invention is the syndeton providing a kind of upper base and guide pipe, this syndeton has the load that enough intensity bears base transmission, can repeat dismounting is installed simultaneously, upper base is taken off from fuel assembly and does not destroy base and guide pipe.
For solving the problem, the invention provides the syndeton of a kind of limit-type upper base and guide pipe, this syndeton adopts rigid joint and position-limiting tube, is provided with some block-shaped protrusion outside rigid joint, inserts in guiding pore below upper base upper grid plate; Be provided with the some block-shaped protrusion corresponding with rigid joint inside position-limiting tube, insert guiding pore, and match with rigid joint above upper grid plate, restriction rigid joint comes off from guiding pore, and rigid joint lower end has the link be connected with guide pipe.
Adopt the syndeton of limit-type upper base provided by the invention and guide pipe, guide pipe and upper base are coupled together, processing is simple, and there is the load that enough intensity bears base transmission, and the connection of guide pipe and upper base can be removed by dismounting position-limiting tube, be convenient to installing/dismounting operation.
The invention provides the syndeton of a kind of upper base and guide pipe, comprising:
Upper base, it is arranged guiding pore, and the internal diameter on guiding pore top is greater than the internal diameter of bottom, forms cascaded surface;
Rigid joint, for hollow columnar structures, comprise the inserting paragraph that is arranged at top and be arranged at bottom and carry boss, inserting paragraph is used for being inserted in guiding pore, at least one screens block of the arranged outside of inserting paragraph, carrying boss moves upward for limiting rigid joint, and carrying boss lower end arranges guide pipe link, for connecting guide pipe;
Position-limiting tube is hollow columnar structures, and be arranged between base and rigid joint and be positioned at above cascaded surface, position-limiting tube inside lower end arranges at least one spacing preiection, for limiting moving downward of the screens block of rigid joint.
Further, the lower inside of guiding pore arranges at least one insertion groove parallel with guide pipe axially bored line, is inserted in guiding pore along insertion groove for screens block.
Further, the upper edge of guiding pore arranges at least one location indentations, and the axis of symmetry of location indentations and the axis of symmetry of insertion groove, in same vertical plane, are convenient to the position of the clear and definite screens block of operating personnel in installation, unloading process, ensures to operate safely and reliably.
Further, location indentations is hemispherical or semicolumn.
Further, the internal diameter of guiding pore bottom is greater than the diameter 0 ~ 0.5mm on the face of cylinder at the outer rim place of screens block, and the inserting paragraph of rigid joint can directly be inserted in guiding pore, and does not need insertion groove, further simplify structure, is easier to processing.
Further, when spacing preiection is multiple, spacing preiection forms insertion groove between any two, adopt multiple spacing preiection to be conducive to the load of the upper base transmission of balanced carrying, now in installation, unloading process, screens block forms insertion groove between any two through spacing preiection, arrive the oblique upper of spacing preiection, after rotary stopper pipe, screens block is positioned at directly over spacing preiection, and in guarantee, base is connected with the reliable of syndeton of guide pipe.
Further, the circumferential lengths of insertion groove is greater than the circumferential lengths of screens block, ensures that screens block arrives the oblique upper of spacing preiection smoothly by insertion groove.
Further, position-limiting tube inside upper part also comprises multiple pivot protrusion, for applying the instrument rotary stopper pipe of moment of torsion.
Further, pivot protrusion and spacing preiection are greater than the length of screens block along rigid joint axis along position-limiting tube axial spacing, and be convenient to position-limiting tube and rotate, screens block arrives directly over spacing preiection.
Further, between spacing preiection with described pivot protrusion, side is connected closed, formation control block and semi-closure groove.
After position-limiting tube inserts guiding pore, rotary spacing pipe, the screens block in rigid joint enters semi-closure groove, and contacts with control block, and expression rotate in place.During dismounting, counter-rotation position-limiting tube, screens block exits semi-closure groove, and contact with the control block of opposite side, expression rotate in place.
Adopt this structure, the operation of rotary spacing pipe 3 can be simplified, make mounting or dismounting easier.
Further, the wall thickness on the upper edge of position-limiting tube is 0.3 ~ 0.8mm.
The object of the invention is to the syndeton of inventing a kind of novel removable upper base and guide pipe.This syndeton can realize remote disconnect and the assembling of base and guide pipe, and owing to having certain radioactivity after fuel assembly operation, therefore re-assemblying and dismantle all need outside certain distance.。
Compared with prior art, the syndeton of upper base provided by the invention and guide pipe has following beneficial effect:
(1) rigid joint and position-limiting tube is adopted, guide pipe and upper base are coupled together, processing is simple, and there is the load that enough intensity bears base transmission, and the connection of guide pipe and upper base can be removed by dismounting position-limiting tube, be convenient to installing/dismounting operation, make base and guide pipe to repeat dismounting;
(2) internal diameter of guiding pore bottom is greater than the diameter on the face of cylinder at the outer rim place of screens block, and the inserting paragraph of rigid joint can directly be inserted in guiding pore, and does not need insertion groove, further simplify structure, is easier to processing.
Accompanying drawing explanation
Fig. 1 is the cut-open view of the upper base of one embodiment of the present of invention and the syndeton of guide pipe;
Fig. 2 is the vertical view of the upper base in the syndeton of the upper base shown in Fig. 1 and guide pipe;
Fig. 3 is the cut-open view of the upper base shown in Fig. 2 along A-A direction;
Fig. 4 is the cut-open view of the upper base shown in Fig. 2 along B-B direction;
Fig. 5 is the skeleton view of the rigid joint in the syndeton of the upper base shown in Fig. 1 and guide pipe;
Fig. 6 is the cut-open view of the rigid joint shown in Fig. 5;
Fig. 7 is the skeleton view of the position-limiting tube in the syndeton of the upper base shown in Fig. 1 and guide pipe;
Fig. 8 is the cut-open view of the position-limiting tube shown in Fig. 7;
Fig. 9 is the cut-open view of the upper base of an alternative embodiment of the invention and the syndeton of guide pipe;
Figure 10 is the skeleton view of the position-limiting tube of the upper base of another embodiment of the present invention and the syndeton of guide pipe.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
As shown in Figure 1, the upper base of one embodiment of the present of invention and the syndeton of guide pipe, comprise base 1, rigid joint 2 and position-limiting tube 3;
Upper base 1 arranges guiding pore, and the internal diameter on guiding pore top is about 15mm ~ 18mm, and the internal diameter of bottom is about 12mm ~ 14mm, and the internal diameter on top is greater than the internal diameter of bottom, forms cascaded surface;
Position-limiting tube 3 is arranged between base 1 and rigid joint 2 and is positioned at above cascaded surface.
As in Figure 2-4, the inner side of guiding pore bottom arranges 3 insertion grooves 12, and insertion groove 12 degree of depth is about 0.5 ~ 1.6mm, and insertion groove 12 is parallel with guide pipe axially bored line.
The inner side of guiding pore bottom is inserted into groove 12 and is divided into 3 support platforms 11, and support platform 11 is about 3 ~ 6mm along the height of guiding pore axis, and arc angle is about 60 ° ~ 90 °.
The upper edge of guiding pore arranges at least one location indentations 13, and the axis of symmetry of location indentations 13 and the axis of symmetry of insertion groove, in same vertical plane, are convenient to the position of the clear and definite screens block of operating personnel in installation, unloading process, ensures to operate safely and reliably.
Lead in the present embodiment on pore along arranging 3 location indentations 13.
Location indentations 13 can be hemispherical, and radius is about 1mm ~ 3mm, and the center of location indentations 13 and the center of insertion groove 12 are on same vertical plane.
As shown in Figure 5, Figure 6, rigid joint 2 comprises the inserting paragraph 21 that is arranged at top and is arranged at bottom and carries boss 22, inserting paragraph 21 is hollow columnar structures, for being inserted in guiding pore, at least one screens block 211 of the arranged outside of inserting paragraph 21, carrying boss 22 moves upward for limiting rigid joint, and carrying boss 22 lower end arranges guide pipe link 221, for connecting guide pipe.
In the present embodiment, inserting paragraph 21 external diameter is 12mm ~ 14mm, is slightly less than the internal diameter of guiding pore bottom, is convenient to inserting paragraph 21 and is inserted in guiding pore.
Arranged outside 3 screens blocks 211 of inserting paragraph 21, screens block 211 is block-shaped protrusion, and the thickness of screens block 211 is about 0.5mm ~ 1.5mm, and axial length is about 2 ~ 6mm, arc angle is about 30 ° ~ 60 °, slightly little than the arc angle of the insertion groove 12 of guiding pore.
Carrying boss 22 is circular ring structure, and external diameter is about 15mm ~ 20mm.
Carrying boss 22 also can adopt other structures, such as, be disposed radially multiple flange, as long as can restrict rigid joint move upward.
In the present embodiment, the internal diameter of guide pipe link 221 matches with guide pipe external diameter, combines by being mechanically connected or being welded to connect.
As shown in Figure 7, Figure 8, position-limiting tube 3 is hollow columnar structures, and external diameter is about 15mm ~ 18mm, is slightly less than the internal diameter on guiding pore top.
Position-limiting tube 3 inside lower end arranges at least one spacing preiection 31, for limiting moving downward of the screens block 211 of rigid joint 2.
Be provided with 3 spacing preiections 31 inside position-limiting tube 3 in the present embodiment, thickness is about 0.5mm ~ 1.5mm, and the length along position-limiting tube 3 axis is about 2 ~ 6mm, and arc angle is about 60 ° ~ 90 °.
Multiple spacing preiection 31 is adopted to be conducive to the load of the upper base transmission of balanced carrying, now in installation, unloading process, screens block 211 forms insertion groove between any two through spacing preiection 31, arrive the oblique upper of spacing preiection 31, after rotary stopper pipe 3, screens block 211 is positioned at directly over spacing preiection 31, and in guarantee, base is connected with the reliable of syndeton of guide pipe.
Spacing preiection 31 forms insertion groove between any two, the internal diameter of insertion groove is about 12mm ~ 16mm, slightly larger than the external diameter of rigid joint 2 screens block 211, the external diameter of screens block 211 refers to the diameter on the face of cylinder at the outer rim place of screens block 211, the circumferential lengths of insertion groove is slightly larger than the circumferential lengths of screens block 211 simultaneously, is convenient to screens block 211 arrives spacing preiection 31 smoothly oblique upper by insertion groove.
Position-limiting tube 3 inside upper part also comprises multiple pivot protrusion 32, and for applying the instrument rotary stopper pipe 3 of moment of torsion, the internal diameter of pivot protrusion 32 is about 12 ~ 14mm, is greater than the external diameter of rigid joint 2 inserting paragraph 21.
Pivot protrusion 32 and spacing preiection 31 are greater than the length of screens block 211 along rigid joint 2 axis along position-limiting tube 3 axial spacing, and be convenient to position-limiting tube 3 and rotate, screens block 211 arrives directly over spacing preiection 31.
Pivot protrusion 32 is formed between any two rotates groove, and the center line of the center line and spacing preiection 31 that rotate groove is on same vertical plane.
The wall thickness on the upper edge of position-limiting tube 3 is 0.3 ~ 0.8mm., form thin-walled shirt rim 33.
The installation process of the upper base in the present embodiment and the syndeton of guide pipe is as follows:
(1) rigid joint 2 inserted from below in the guiding pore of base 1, the screens block 211 of wherein rigid joint 2 enters in guiding pore along the insertion groove 12 of guiding pore, and the carrying boss 22 of rigid joint 2 coordinates with the little surface contact of upper base lattice plate;
(2) by position-limiting tube 3 from top insert base 1 guiding pore in, the screens block 211 of rigid joint 2 is through the insertion groove of position-limiting tube 3, enter the space between the pivot protrusion 32 of position-limiting tube 3 and spacing preiection 31, spacing preiection 31 lower surface of position-limiting tube 3 contacts with the upper surface of the support platform 14 of guiding pore 1 and coordinates;
(3) use the instrumental purpose applying moment of torsion in the pivot protrusion 32 of position-limiting tube 3, rotation groove is alignd with location dimples 13, and now spacing preiection 31 turns to immediately below screens block 211, aligns with the center of screens block 24 in the center of spacing preiection 31;
(4) the thin-walled shirt rim 33 of position-limiting tube 3 is pressed in the location dimples 13 of guiding pore, thin-walled shirt rim 33 is out of shape in rear embedding location dimples 13, prevents position-limiting tube 3 from rotating;
(5) rigid joint 2 is connected with guide pipe by guide pipe link 221, thus realizes the connection of upper base and guide pipe.
During dismounting, use the instrument inhour rotary stopper pipe 3 applying moment of torsion, position-limiting tube 3 can be disassembled from guiding pore.Then upper base can be taken off from rigid joint 2 by insertion groove 12, the connection in releasing between base and guide pipe.
As shown in Figure 9, the upper base of an alternative embodiment of the invention and the syndeton of guide pipe, comprise base 1, rigid joint 2 and position-limiting tube 3, wherein rigid joint 2 and the structure of position-limiting tube 3 and consistent in the embodiment shown in Fig. 1.
The bottom of the guiding pore that upper base 1 is arranged does not arrange insertion groove, and the internal diameter on top is greater than the internal diameter of bottom, and form cascaded surface, whole annular stepped face is support platform.
The lower inner diameter of guiding pore is about 12 ~ 16mm, slightly larger than the external diameter of the screens block 211 of rigid joint 2, the i.e. diameter on the face of cylinder at the outer rim place of screens block 211, therefore rigid joint 2 can directly be inserted in guiding pore, and do not need to arrange insertion groove, further simplify structure, be easier to processing.
Embodiment shown in the installing/dismounting process of the upper base in the present embodiment and the syndeton of guide pipe and Fig. 1 is consistent.
The syndeton of upper base provided by the invention and guide pipe, adopt rigid joint and position-limiting tube, guide pipe and upper base are coupled together, processing is simple, and there is the load that enough intensity bears base transmission, and the connection of guide pipe and upper base can be removed by dismounting position-limiting tube, be convenient to installing/dismounting operation in limited space, make base and guide pipe to repeat dismounting; The internal diameter of guiding pore bottom is greater than the diameter on the face of cylinder at the outer rim place of screens block, and the inserting paragraph of rigid joint can directly be inserted in guiding pore, and does not need insertion groove, further simplify structure, is easier to processing.
As shown in Figure 10, in the upper base of another embodiment of the present invention and the syndeton of guide pipe, the spacing preiection 31 of position-limiting tube 3 can be connected closed in side with between pivot protrusion 32, formation control block 34 and semi-closure groove 35.
After position-limiting tube 3 inserts guiding pore, rotary spacing pipe 3, the screens block 211 in rigid joint 2 enters semi-closure groove 35, and contacts with control block 34, and expression rotate in place.During dismounting, counter-rotation position-limiting tube 3, screens block 211 exits semi-closure groove 35, and contact with the control block 34 of opposite side, expression rotate in place.
Adopt this structure, the operation of rotary spacing pipe 3 can be simplified, make mounting or dismounting easier.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (10)
1. a syndeton for upper base and guide pipe, it is characterized in that, the syndeton of described upper base and guide pipe comprises:
Upper base, it is arranged guiding pore, and the internal diameter on described guiding pore top is greater than the internal diameter of bottom, forms cascaded surface;
Rigid joint, for hollow columnar structures, comprise the inserting paragraph being arranged at top and the carrying boss being arranged at bottom, described inserting paragraph is used for being inserted in described guiding pore, at least one screens block of the arranged outside of described inserting paragraph, described carrying boss moves upward for limiting described rigid joint, and described carrying boss lower end arranges guide pipe link, for connecting guide pipe;
Position-limiting tube, for hollow columnar structures, being arranged between described upper base and described rigid joint is positioned at above described cascaded surface, and described position-limiting tube inside lower end arranges at least one spacing preiection, for limiting moving downward of the described screens block of described rigid joint.
2. the syndeton of upper base as claimed in claim 1 and guide pipe, it is characterized in that, the lower inside of described guiding pore arranges at least one insertion groove parallel with described guide pipe axially bored line, is inserted in described guiding pore along described insertion groove for described screens block.
3. the syndeton of upper base as claimed in claim 2 and guide pipe, it is characterized in that, the upper edge of described guiding pore arranges at least one location indentations, and the axis of symmetry of described location indentations and the axis of symmetry of described insertion groove are in same vertical plane.
4. the syndeton of upper base as claimed in claim 3 and guide pipe, it is characterized in that, described location indentations is hemispherical or semicolumn.
5. the syndeton of upper base as claimed in claim 1 and guide pipe, it is characterized in that, the internal diameter of described guiding pore bottom is greater than the diameter 0 ~ 0.5mm on the face of cylinder at the outer rim place of described screens block.
6. the syndeton of upper base as claimed in claim 1 and guide pipe, it is characterized in that, when described spacing preiection is multiple, described spacing preiection forms insertion groove between any two.
7. the syndeton of upper base as claimed in claim 6 and guide pipe, it is characterized in that, the circumferential lengths of described insertion groove is greater than the circumferential lengths of screens block.
8. the syndeton of upper base as claimed in claim 1 and guide pipe, it is characterized in that, described position-limiting tube inside upper part also comprises multiple pivot protrusion, and the instrument for applying moment of torsion rotates described position-limiting tube.
9. the syndeton of upper base as claimed in claim 8 and guide pipe, is characterized in that, between described spacing preiection with described pivot protrusion, side is connected closed, formation control block and semi-closure groove.
10. the syndeton of upper base as claimed in claim 1 and guide pipe, it is characterized in that, the wall thickness on the upper edge of described position-limiting tube is 0.3 ~ 0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410821018.8A CN104538065B (en) | 2014-12-19 | 2014-12-19 | A kind of attachment structure of limit-type upper base and guide pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410821018.8A CN104538065B (en) | 2014-12-19 | 2014-12-19 | A kind of attachment structure of limit-type upper base and guide pipe |
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| Publication Number | Publication Date |
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| CN104538065A true CN104538065A (en) | 2015-04-22 |
| CN104538065B CN104538065B (en) | 2017-11-07 |
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| CN201410821018.8A Active CN104538065B (en) | 2014-12-19 | 2014-12-19 | A kind of attachment structure of limit-type upper base and guide pipe |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106935281A (en) * | 2015-12-31 | 2017-07-07 | 中核建中核燃料元件有限公司 | A kind of upper pipe seat of fuel component |
| CN107068208A (en) * | 2017-02-27 | 2017-08-18 | 中国核动力研究设计院 | Portion connecting structure and its mounting and dismounting method on a kind of quick removable fuel assembly |
| CN107610785A (en) * | 2017-08-16 | 2018-01-19 | 中广核研究院有限公司 | Guide pipe and the quick releasable connection device and method of upper base |
| CN107644687A (en) * | 2017-08-16 | 2018-01-30 | 岭东核电有限公司 | Guide pipe and the quick releasable connection structure of upper base and method |
| CN108198636A (en) * | 2017-12-18 | 2018-06-22 | 岭澳核电有限公司 | For the fleetness detachable equipment and fuel assembly of fuel assembly |
| CN109935364A (en) * | 2017-12-19 | 2019-06-25 | 中国原子能科学研究院 | A kind of guiding pipe connected pipe, upper tube socket and fuel assembly skeleton |
| CN111048219A (en) * | 2019-12-27 | 2020-04-21 | 中国核动力研究设计院 | Connecting structure capable of realizing fast connection and loosening in long distance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107068208A (en) * | 2017-02-27 | 2017-08-18 | 中国核动力研究设计院 | Portion connecting structure and its mounting and dismounting method on a kind of quick removable fuel assembly |
| CN107610785A (en) * | 2017-08-16 | 2018-01-19 | 中广核研究院有限公司 | Guide pipe and the quick releasable connection device and method of upper base |
| CN107644687A (en) * | 2017-08-16 | 2018-01-30 | 岭东核电有限公司 | Guide pipe and the quick releasable connection structure of upper base and method |
| CN107610785B (en) * | 2017-08-16 | 2019-09-20 | 中广核研究院有限公司 | Guide pipe and the quick releasable connection device and method of upper tube socket |
| CN107644687B (en) * | 2017-08-16 | 2019-11-15 | 岭东核电有限公司 | Guide pipe and the quick releasable connection structure of upper tube socket and method |
| CN108198636A (en) * | 2017-12-18 | 2018-06-22 | 岭澳核电有限公司 | For the fleetness detachable equipment and fuel assembly of fuel assembly |
| CN109935364A (en) * | 2017-12-19 | 2019-06-25 | 中国原子能科学研究院 | A kind of guiding pipe connected pipe, upper tube socket and fuel assembly skeleton |
| CN111048219A (en) * | 2019-12-27 | 2020-04-21 | 中国核动力研究设计院 | Connecting structure capable of realizing fast connection and loosening in long distance |
| CN111048219B (en) * | 2019-12-27 | 2021-12-21 | 中国核动力研究设计院 | Connecting structure capable of realizing fast connection and loosening in long distance |
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| CN104538065B (en) | 2017-11-07 |
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