CN102750990A - Conveniently machined nuclear fuel assembly lower pipe seat filter plate and machining process of nuclear fuel assembly lower pipe seat filter plate - Google Patents
Conveniently machined nuclear fuel assembly lower pipe seat filter plate and machining process of nuclear fuel assembly lower pipe seat filter plate Download PDFInfo
- Publication number
- CN102750990A CN102750990A CN2012102505228A CN201210250522A CN102750990A CN 102750990 A CN102750990 A CN 102750990A CN 2012102505228 A CN2012102505228 A CN 2012102505228A CN 201210250522 A CN201210250522 A CN 201210250522A CN 102750990 A CN102750990 A CN 102750990A
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- filter plate
- fuel assembly
- nuclear fuel
- filter
- bottom nozzle
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- 239000003758 nuclear fuel Substances 0.000 title claims abstract description 46
- 238000003754 machining Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000002826 coolant Substances 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 21
- 238000005516 engineering process Methods 0.000 claims description 8
- 102000011842 Serrate-Jagged Proteins Human genes 0.000 claims description 7
- 108010036039 Serrate-Jagged Proteins Proteins 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 7
- 238000001914 filtration Methods 0.000 abstract description 7
- 239000003507 refrigerant Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 5
- 239000000446 fuel Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Classifications
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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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- Filtration Of Liquid (AREA)
Abstract
The invention discloses a conveniently machined nuclear fuel assembly lower pipe seat filter plate which is mainly composed of a filter plate body (5), filtering holes (1) and connecting holes (4), wherein the filtering holes (1) and connecting holes (4) penetrate through the filter plate body (5), the filtering holes (1) are formed by two elongated slots or at least two strip-shaped holes in a spatial cross structure. The invention also discloses a process for machining the nuclear fuel assembly lower pipe seat filter plate. According to the conveniently machined nuclear fuel assembly lower pipe seat filter plate, the good filtering effect can be achieved, the flow area share of a refrigerant is high, the structural strength is enough, and the filter plate is conveniently mounted and fixed; and moreover, the nuclear fuel assembly lower pipe seat filter plate is low in machining difficulty and low in machining cost.
Description
Technical field
The present invention relates to the design field of nuclear fuel assembly bottom nozzle filter plate, specifically be meant a kind of nuclear fuel assembly bottom nozzle filter plate and processing technology of being convenient to process thereof.
Background technology
Nuclear fuel assembly is made up of some fuel rods, guide pipe and grid spacer and last bottom nozzle.The basic function of bottom nozzle is the lower junction member as nuclear fuel assembly, for nuclear fuel assembly provides support and interface, the passage of cooling medium inflow is provided simultaneously and distributes coolant flow; In order to prevent that foreign matter from getting into nuclear fuel assembly screen work lattice cell; Need above the web joint of bottom nozzle, filter plate to be installed; Filter foreign matter through this filter plate, play the effect of foreign matter in filtration and the block water, be clipped in the risk that causes foreign matter abrasion breakage in the nuclear fuel assembly thereby reduce foreign matter.
Existing filter plate plays the effect of foreign matter in filtration and the block water through being distributed with some square holes that run through its thickness direction in the plane, but its processing and manufacturing difficulty must could realize that manufacturing cost is high through special process modes such as galvanochemistry processing.
Summary of the invention
The objective of the invention is to overcome the shortcoming and defect of above-mentioned prior art; A kind of nuclear fuel assembly bottom nozzle filter plate of being convenient to process is provided, and this filter plate can not only obtain good filter effect, and the coolant flow area fraction is high; Structural strength is enough, the filter plate of being convenient to install and fix; And difficulty of processing is low, and processing cost is low.
The invention also discloses a kind of processing technology of above-mentioned nuclear fuel assembly bottom nozzle filter plate.
The object of the invention is realized through following technical proposals: a kind of nuclear fuel assembly bottom nozzle filter plate of being convenient to process; Main by the filter plate body and run through the filter opening and the connecting hole that are arranged on the filter plate body and constitute; Filter opening is mainly used in the circulation of liquid coolant and stops foreign matter; The purpose that connecting hole is set is to be convenient to install nuclear fuel assembly, and said filter opening is space crossed structure by two strip grooves or at least two strip holes and forms, and the hole that this crossover location forms is filter opening.
As a kind of preferred version of the present invention; Said filter plate body is made up of a whole plate; And the upper and lower surfaces of whole plate all offers several strip grooves; Said filter opening is space crossed structure by two strip grooves that are separately positioned on whole plate upper and lower surfaces and forms, and the hole of this crossover location formation is filter opening; In order to make two strip grooves that are space crossed structure can form filter opening; The said degree of depth sum that is two strip grooves of space crossed structure is equal to or greater than the thickness of whole plate; The bottom land that promptly need satisfy two strip grooves has the part that intersection communicates, and the hole that the part that this intersection communicates forms is filter opening, in order to reduce difficulty of processing; The height sum of preferred two strip grooves equals the thickness of whole plate, and promptly the bottom land of two strip grooves just intersects and communicates.
Above-mentioned strip groove is preferably rectangular slot, waveform groove or serrate groove, but is not limited to this, also can select separately according to actual conditions.
As another kind of preferred version of the present invention; Said filter plate body is made up of at least two thin plate stacks; And all offer several strip holes on the every thin plate; Said filter opening is space crossed structure by at least two strip holes that are separately positioned on the different thin plates and forms, and the hole that this crossover location forms is filter opening; Different with first kind of preferred version is, because what on thin plate, offer is the strip hole, since be the hole, must run through the upper and lower surfaces of thin plate, and two thin plates are overlaped, and its crossover location must communicate and form the hole, and this hole is filter opening; The quantity of thin plate decides according to required filter plate gross thickness of reality and the monolithic gauge of sheet of choosing.
Above-mentioned strip hole is preferably slot, waveform hole or serrate hole, but is not limited to this, also can select separately according to actual conditions.
To sum up can know: above-mentioned two kinds of preferred versions are based on a design in fact, promptly form filter opening through space crossed structure, thereby reduce the difficulty of processing of filter plate, reduce processing cost; Different is, when the thickness of required filter plate is excessive, adopts the upper and lower surfaces fluting, and traditional grooving processes can not make the space crossed cross section of two grooves up and down communicate and form the hole, and promptly groove depth does not still reach; This time, take second kind of preferred version, form filter plate through the stack of polylith thin plate, thereby satisfied the thickness demand of filter plate, and can make cross section form filter opening.
Further; For the structural strength that guarantees filter plate and the circulation area of liquid coolant; Said filter plate body is divided into several liquid coolant circulating areas, and the filter opening in each liquid coolant circulating area is formed a Kong Qun, passes through wide rib space between the adjacent holes crowd; Connecting hole is arranged on the position, boundary of wide rib, passes through narrow rib space between the adjacent filter opening.
The wide rib here is meant the part between the adjacent holes crowd on the filter plate body, because it is used for keeping structural strength, thus the broad of design, so the wide rib of called after; Narrow rib is meant the part between adjacent filter opening on the filter plate body, owing to should increase the circulation area of liquid coolant in the design as far as possible, so design is narrower, so the narrow rib of called after, wide rib hereinafter is identical therewith with the definition of narrow rib.
The present invention is designed to narrow rib with the rib between the filter opening in each Kong Qun, thereby increases the circulation area of liquid coolant, and through the rib between each Kong Qun is designed to wide rib, is about to the broad of the rib design between the Kong Qun, keeps structural strength through it.
The big young pathbreaker of the width of above-mentioned wide rib directly has influence on cooling medium through pressure drop and structural strength, and the width of wide rib is big more, and its structural strength is big more; Reduce but the circulation area of liquid coolant is corresponding, promptly liquid coolant raises through pressure drop, and is opposite; The width of wide rib is more little, and its structural strength is corresponding to be reduced, but the then corresponding increase of the circulation area of liquid coolant; Being liquid coolant reduces through pressure drop, and among the present invention, wide rib is mainly used in that to keep structural strength enough; So in design, should preferentially satisfy structural strength, and then consider the circulation area of liquid coolant; When the width of wide muscle is too small; The structural strength of filter plate is difficult to satisfy request for utilization; The excessive circulation share that then can lower filter plate of width increases its pressure drop, takes all factors into consideration; In order to obtain lower cooling medium through pressure drop and suitable structural strength, the breadth-first of wide rib described in the present invention is designed to 0.8mm ~ 10mm.
The width size of above-mentioned narrow rib is identical with wide rib through the influence of pressure drop and structural strength to cooling medium, but its setting should be paid the utmost attention to the circulation area that increases liquid coolant, when the width of narrow rib is too small; The structural strength of filter plate is difficult to satisfy request for utilization; The excessive circulation share that then can lower filter plate of width increases its pressure drop, takes all factors into consideration; In order to obtain lower cooling medium through pressure drop and suitable structural strength, the breadth-first of wide rib described in the present invention is designed to 0.2mm ~ 1.2mm.
Be generally guide pipe and gauge pipe owing to possibly pass the component for nuclear fuel assembly of filter plate; So connecting hole includes but not limited to guide pipe connecting hole and gauge pipe connecting hole; The guide pipe connecting hole is used to install guide pipe, and the gauge pipe connecting hole is used to install gauge pipe, generally speaking; The number of guide pipe connecting hole is a plurality of, and the number of gauge pipe connecting hole is one; For the ease of whole anti-filter plate is installed on the nuclear fuel assembly bottom nozzle, can also set up two corresponding steady pin holes in position on the said filter plate body.
Said Kong Qun carries out arranged according to the open-cellular form of nuclear fuel assembly bottom nozzle; The position of wide rib is corresponding with the position of nuclear fuel assembly bottom nozzle rib; The position of opening that is the Kong Qunyu bottom nozzle is corresponding; Block influence each other to reduce, reduce liquid coolant through pressure drop to the liquid coolant circulation area.
A kind of processing technology of nuclear fuel assembly bottom nozzle filter plate may further comprise the steps:
(a) choose a whole plate as the filter plate body, and the size that is processed into the nuclear fuel assembly bottom nozzle is complementary;
(b) according to the position of opening of nuclear fuel assembly bottom nozzle, the definite filter opening that need offer and the position of connecting hole;
(c) according to the position of offering of filter opening and connecting hole, confirm the position and the size of whole plate upper and lower surfaces fluting, then whole plate upper and lower surfaces is carried out groove milling, the groove of upper and lower surfaces is space crossed structure and forms filter opening;
(d) process connecting hole in position, wide rib boundary, whole filter plate machines.
A kind of processing technology of nuclear fuel assembly bottom nozzle filter plate may further comprise the steps:
(a) choose at least two thin plates, and the size that is processed into the nuclear fuel assembly bottom nozzle is complementary;
(b) according to the position of opening of nuclear fuel assembly bottom nozzle, the definite filter opening that need offer and the position of connecting hole;
(c), confirm position of opening and size on the every thin plate, then to thin plate punching out perforate according to the position of offering of filter opening and connecting hole; After perforate is accomplished, all thin plate stacks are constituted the filter plate body, the hole on the thin plate is space crossed structure and forms filter opening;
(d) process connecting hole in position, wide rib boundary, whole filter plate machines.
Above-mentioned connecting hole still adopts the traditional processing mode to process, like boring or preboring milling etc.
In sum, advantage of the present invention is following:
(1) the present invention forms filter opening through space crossed structure, and filter opening is combined to form Kong Qun, and the hole crowd arranges that the acquisition filter effect is good, and the coolant flow area fraction is high, and structural strength is enough, is convenient to installing and fixing of filter plate;
(2) the present invention makes and is prone to realize, intersects to superpose for multilayer strip hole thin plate to form the filter plate of filter opening, and its thin plate can be accomplished through punching out; Form the filter plate of filter opening for thicker whole plate pros and cons intersection fluting; Can realize that its difficulty of processing is low through two-sided groove milling, processing cost is low.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to synoptic diagram;
Fig. 3 is the B position partial enlarged drawing of Fig. 2;
Fig. 4 is the strip slot space decussate texture synoptic diagram of embodiment 1;
Shape synoptic diagram when Fig. 5 is rectangle for strip groove among the embodiment 1;
Shape synoptic diagram when Fig. 6 is waveform for strip groove among the embodiment 1;
Shape synoptic diagram when Fig. 7 is serrate for strip groove among the embodiment 1;
Fig. 8 is a thin-slab construction synoptic diagram among the embodiment 2;
Fig. 9 is the filter-plate structure synoptic diagram that the thin plate stack constitutes among the embodiment 2.
The pairing name of Reference numeral is called in the accompanying drawing: 1-filter opening; 2-wide rib; 3-Kong Qun; 4-connecting hole; 5-filter plate body; 6-narrow rib; 7-steady pin hole; 8-strip groove; 9-strip hole.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done further detailed description, but embodiment of the present invention is not limited only to this.
Embodiment 1:
Like Fig. 1, shown in 2 and 3, the present invention mainly is made up of filter plate body 5, and this filter plate body 5 is a whole plate, and the position of opening correspondence of going back based on fuel assembly bottom nozzle on the said whole plate offers connecting hole 4 and steady pin hole 7; The upper and lower surfaces that should put in order plate all offers several strip grooves 8, and the shape of strip groove 8 can be rectangle as shown in Figure 5, also can be waveform as shown in Figure 6, perhaps is serrate as shown in Figure 7; As shown in Figure 4, the strip groove 8 that is separately positioned on whole plate upper and lower surfaces is space crossed structure, thereby forms filter opening 1.
For the structural strength that guarantees whole filter plate and the circulation area of liquid coolant; As shown in Figure 1; The present invention is divided into several liquid coolant circulating areas with filter plate body 5, and the filter opening 1 in each liquid coolant circulating area is formed a hole crowd 3, passes through wide rib 2 between the adjacent holes crowd 3 at interval; Connecting hole 4 is arranged on the position, boundary of wide rib 2, passes through narrow rib 6 between the adjacent filter opening 1 at interval; The width of said wide rib 2 is preferably 0.8mm ~ 10mm, and the width of narrow rib 6 is 0.2mm ~ 1.2mm.
The process of above-mentioned filter plate is: (a) choose a whole plate as filter plate body 5, and the size that is processed into the nuclear fuel assembly bottom nozzle is complementary; (b) according to the position of opening of nuclear fuel assembly bottom nozzle, the position of the definite filter opening that need offer 1 and connecting hole 4; (c) according to the position of offering of filter opening 1 and connecting hole 4, confirm the position and the size of whole plate upper and lower surfaces fluting, then whole plate upper and lower surfaces is carried out groove milling and form strip groove 8, the strip groove 8 of upper and lower surfaces is space crossed structure and forms filter opening 1; (d) process connecting hole 4 in position, wide rib 2 boundary, connecting hole 4 adopts the traditional processing mode to process, and like boring or preboring milling etc., whole filter plate machines.
Embodiment 2:
Present embodiment and embodiment 1 difference are; 5 at least two thin plate shown in Figure 8 stacks of filter plate body constitute; All offer several strip holes 9 on the every thin plate; Said filter opening 1 is space crossed structure by at least two strip holes 9 that are separately positioned on the different thin plates and forms, and superposes after turning 90 degrees in order better to form filter opening 1, to revolve between adjacent two thin plates in the present embodiment; And cause the minimizing of liquid coolant circulation share for preventing that two thin plates from directly fitting, can increase pad in 4 positions of the connecting hole between two thin plates it is not directly fitted.
Thin plate can adopt structural strength material preferably; The foreign matter in the cooling medium can be tentatively filtered in the strip hole 9 that its punching out forms, and plays the effect of filtering for the first time, and the strip foreign matter of minute quantity possibly be orientated consistent with the thin plate perforate and pass through first thin plate; But receive second stopping of thin plate after getting into and can not get into fuel assembly; The equivalent filter opening of combination filter plate is equivalent to the aperture that two boards intersects to form, and under the situation that guarantees the circulation share, filter effect can obviously improve.
The shape of the strip groove among the strip hole in the present embodiment and the embodiment 1 is identical, can be rectangle, waveform or serrate; Thin plate forms filter plate shown in Figure 9 through stack, and for the structural strength that guarantees whole filter plate and the circulation area of liquid coolant, arranging of its filter opening 1 is identical with embodiment 1, repeats no more at this.
The process of the filter plate of present embodiment is: (a) choose at least two thin plates, and the size that is processed into the nuclear fuel assembly bottom nozzle is complementary; (b) according to the position of opening of nuclear fuel assembly bottom nozzle, the position of the definite filter opening that need offer 1 and connecting hole 4; (c) according to the position of offering of filter opening 1 and connecting hole 4, confirm position of opening and size on the every thin plate, then thin plate punching out perforate is formed strip hole 9; After perforate is accomplished, all thin plate stacks are constituted filter plate body 5, the strip hole 9 on the thin plate is space crossed structure and forms filter opening 1; (d) process connecting hole 4 in position, wide rib 2 boundary, connecting hole 4 adopts the traditional processing mode to process, and whole filter plate machines.
As implied above, just can realize the present invention preferably.
Claims (10)
1. nuclear fuel assembly bottom nozzle filter plate of being convenient to process; It is characterized in that: mainly by filter plate body (5) and run through the filter opening (1) that is arranged on the filter plate body (5) and connecting hole (4) constitutes, said filter opening (1) is space crossed structure by two strip grooves or at least two strip holes and forms.
2. a kind of nuclear fuel assembly bottom nozzle filter plate of being convenient to process according to claim 1; It is characterized in that: said filter plate body (5) is made up of a whole plate; And the upper and lower surfaces of whole plate all offers several strip grooves, and said filter opening (1) is space crossed structure by two strip grooves that are separately positioned on whole plate upper and lower surfaces and forms.
3. a kind of nuclear fuel assembly bottom nozzle filter plate of being convenient to process according to claim 2, it is characterized in that: said strip groove is rectangular slot, waveform groove or serrate groove.
4. a kind of nuclear fuel assembly bottom nozzle filter plate of being convenient to process according to claim 1; It is characterized in that: said filter plate body (5) is made up of at least two thin plate stacks; And all offer several strip holes on the every thin plate, said filter opening (1) is space crossed structure by at least two strip holes that are separately positioned on the different thin plates and forms.
5. a kind of nuclear fuel assembly bottom nozzle filter plate of being convenient to process according to claim 4, it is characterized in that: said strip hole is slot, waveform hole or serrate hole.
6. according to each described a kind of nuclear fuel assembly bottom nozzle filter plate of being convenient to process in the claim 1～5; It is characterized in that: said filter plate body (5) is divided into several liquid coolant circulating areas; Filter opening (1) in each liquid coolant circulating area is formed a Kong Qun (3); Through wide rib (2) at interval, connecting hole (4) is arranged on the position, boundary of wide rib (2) between the adjacent holes crowd (3), passes through narrow rib (6) at interval between the adjacent filter opening (1).
7. a kind of nuclear fuel assembly bottom nozzle filter plate of being convenient to process according to claim 6, it is characterized in that: the width of said wide rib (2) is 0.8mm ~ 10mm.
8. a kind of nuclear fuel assembly bottom nozzle filter plate of being convenient to process according to claim 6, it is characterized in that: the width of said narrow rib (6) is 0.2mm ~ 1.2mm.
9. the processing technology of a nuclear fuel assembly bottom nozzle filter plate is characterized in that: may further comprise the steps:
(a) choose a whole plate as filter plate body (5), and the size that is processed into the nuclear fuel assembly bottom nozzle is complementary;
(b) according to the position of opening of nuclear fuel assembly bottom nozzle, the definite filter opening (1) that need offer and the position of connecting hole (4);
(c) according to the position of offering of filter opening (1) and connecting hole (4), confirm the position and the size of whole plate upper and lower surfaces fluting, then whole plate upper and lower surfaces is carried out groove milling, the groove of upper and lower surfaces is space crossed structure and forms filter opening (1);
(d) process connecting hole (4) in wide rib (2) position, boundary, whole filter plate machines.
10. the processing technology of a nuclear fuel assembly bottom nozzle filter plate is characterized in that: may further comprise the steps:
(a) choose at least two thin plates, and the size that is processed into the nuclear fuel assembly bottom nozzle is complementary;
(b) according to the position of opening of nuclear fuel assembly bottom nozzle, the definite filter opening (1) that need offer and the position of connecting hole (4);
(c) according to the position of offering of filter opening (1) and connecting hole (4), confirm position of opening and size on the every thin plate, then to thin plate punching out perforate; After perforate is accomplished, all thin plate stacks are constituted filter plate body (5), the hole on the thin plate is space crossed structure and forms filter opening (1);
(d) process connecting hole (4) in wide rib (2) position, boundary, whole filter plate machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210250522.8A CN102750990B (en) | 2012-07-19 | 2012-07-19 | A kind of down pipe base for nucleus fuel component filter plate and complete processing thereof being convenient to processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210250522.8A CN102750990B (en) | 2012-07-19 | 2012-07-19 | A kind of down pipe base for nucleus fuel component filter plate and complete processing thereof being convenient to processing |
Publications (2)
| Publication Number | Publication Date |
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| CN102750990A true CN102750990A (en) | 2012-10-24 |
| CN102750990B CN102750990B (en) | 2016-06-01 |
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| CN201210250522.8A Active CN102750990B (en) | 2012-07-19 | 2012-07-19 | A kind of down pipe base for nucleus fuel component filter plate and complete processing thereof being convenient to processing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015089835A1 (en) * | 2013-12-20 | 2015-06-25 | 中科华核电技术研究院有限公司 | Lower tube socket and light-water reactor fuel assembly |
| CN115206557A (en) * | 2022-07-07 | 2022-10-18 | 中国核动力研究设计院 | Fuel assembly lower pipe seat and filter assembly based on space curved surface channel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4832905A (en) * | 1988-04-15 | 1989-05-23 | Combustion Engineering, Inc. | Lower end fitting debris collector |
| CN1046410A (en) * | 1989-04-12 | 1990-10-24 | 法玛通公司 | The filter of nuclear reactor fuel parts lower sub |
| CN1046411A (en) * | 1989-04-12 | 1990-10-24 | 法玛通公司 | Have the fuel assembly lower end nozzle of a particulate filter arrangement and fuel assembly with a kind of like this end nozzle |
| US5009839A (en) * | 1990-09-04 | 1991-04-23 | B&W Fuel Company | Nuclear fuel assembly bottom nozzle plate |
| US5030412A (en) * | 1990-05-04 | 1991-07-09 | Advanced Nuclear Fuels Corporation | Fuel assembly debris screen |
| US5361287A (en) * | 1994-03-29 | 1994-11-01 | B&W Fuel Company | Nuclear fuel assembly lower end fitting |
| CN202650558U (en) * | 2012-07-19 | 2013-01-02 | 中国核动力研究设计院 | A filter plate for lower tube seat of nuclear fuel assembly which is easy to process |
-
2012
- 2012-07-19 CN CN201210250522.8A patent/CN102750990B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4832905A (en) * | 1988-04-15 | 1989-05-23 | Combustion Engineering, Inc. | Lower end fitting debris collector |
| CN1046410A (en) * | 1989-04-12 | 1990-10-24 | 法玛通公司 | The filter of nuclear reactor fuel parts lower sub |
| CN1046411A (en) * | 1989-04-12 | 1990-10-24 | 法玛通公司 | Have the fuel assembly lower end nozzle of a particulate filter arrangement and fuel assembly with a kind of like this end nozzle |
| US5030412A (en) * | 1990-05-04 | 1991-07-09 | Advanced Nuclear Fuels Corporation | Fuel assembly debris screen |
| US5009839A (en) * | 1990-09-04 | 1991-04-23 | B&W Fuel Company | Nuclear fuel assembly bottom nozzle plate |
| US5361287A (en) * | 1994-03-29 | 1994-11-01 | B&W Fuel Company | Nuclear fuel assembly lower end fitting |
| CN202650558U (en) * | 2012-07-19 | 2013-01-02 | 中国核动力研究设计院 | A filter plate for lower tube seat of nuclear fuel assembly which is easy to process |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015089835A1 (en) * | 2013-12-20 | 2015-06-25 | 中科华核电技术研究院有限公司 | Lower tube socket and light-water reactor fuel assembly |
| CN105849815A (en) * | 2013-12-20 | 2016-08-10 | 中广核研究院有限公司 | Lower tube socket and light-water reactor fuel assembly |
| CN105849815B (en) * | 2013-12-20 | 2018-03-13 | 中广核研究院有限公司 | Bottom nozzle and light-water reactor fuel assembly |
| US10418135B2 (en) | 2013-12-20 | 2019-09-17 | China Nuclear Power Technology Research Institute Co., Ltd | Bottom nozzle and light-water reactor fuel assembly |
| CN115206557A (en) * | 2022-07-07 | 2022-10-18 | 中国核动力研究设计院 | Fuel assembly lower pipe seat and filter assembly based on space curved surface channel |
| CN115206557B (en) * | 2022-07-07 | 2024-01-30 | 中国核动力研究设计院 | Fuel assembly lower tube seat and filter assembly based on space curved surface channel |
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| Publication number | Publication date |
|---|---|
| CN102750990B (en) | 2016-06-01 |
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