KR830001692B1 - Guide tube fixture of reactor fuel assembly - Google Patents
Guide tube fixture of reactor fuel assembly Download PDFInfo
- Publication number
- KR830001692B1 KR830001692B1 KR1019800002256A KR800002256A KR830001692B1 KR 830001692 B1 KR830001692 B1 KR 830001692B1 KR 1019800002256 A KR1019800002256 A KR 1019800002256A KR 800002256 A KR800002256 A KR 800002256A KR 830001692 B1 KR830001692 B1 KR 830001692B1
- Authority
- KR
- South Korea
- Prior art keywords
- sleeve
- guide tube
- fuel assembly
- end plate
- shoulder
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
- G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
내용 없음.No content.
Description
첨부 도면은 본 발명에 따른 연료 조립체의 안내관 고정장치의 단면도.The accompanying drawings are cross-sectional views of a guide tube holder of a fuel assembly according to the invention.
본 발명은 원자로 연료 조립체의 안내관 고정장치에 관한 것으로서, 상세하게는 실제 다수의 단위봉으로 된 연료가 각각이 연료 조립체를 구성하는 자율적인 관속(autonomous bundle)으로 그루우프를 이루는 통상적인 수냉 PWR식의 원자로용 연료 조립체의 안내관 고정장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide tube fixture of a nuclear reactor fuel assembly, in particular a conventional water-cooled PWR in which a plurality of actual rod fuels are grouped into autonomous bundles, each of which constitutes a fuel assembly A guide tube fixture of a nuclear fuel assembly for a nuclear reactor.
공지된 바와 같이 이런 조립체는 중공 안내관에 의해 연결된 상부 및 하부단부판을 가지며, 그것은 특히 제어봉 또는 측정장치의 도입을 위해 작용된다. 이 상이한 안내관에는 대개 이 안내관에 대해 종종 자유롭게 슬라이드할 수 있는 간격(spacing grid)가 고정되며 그속에는 스프링 시스템에 의해 단위 연료봉이 고정된다.As is known, such assemblies have upper and lower end plates connected by hollow guide tubes, which serve in particular for the introduction of control rods or measuring devices. These different guide tubes are usually fixed with a freely slidable spacing grid about the guide tubes, in which unit fuel rods are fixed by means of a spring system.
공지의 기술에서 단부판은 스텐레스강으로 제조되며 안내관은 중성자 선속의 횡단을 허용하는 지르칼로이합금으로 제조된다.In the known art the end plates are made of stainless steel and the guide tubes are made of zircaloy alloy allowing for the crossing of the neutron flux.
지르칼로 이를 스텐레스강에 용접할 수 없어서, 종래에는 관이 그 지지몰 내에서 종방향으로 슬라이드 하는 것을 방지하기 위한 파형을 갖는 강제 피팅 시스템에 의해 안내관은 스텐레스강 단부판에 고정되었다. 그러나, 이런 시스템은 원자로 온도가 상승할 때 상이한 연결 부제 사이의 상이한 팽차에 별로 저항할수 없다. 거의 변함 없이, 이 팽창은 직경 및 종방향의 변형을 유도 하므로, 비교적 짧은 운전 기간에 연결 부가 손상된다.Since the zircals could not weld it to stainless steel, the guide tube was conventionally fixed to the stainless steel end plate by a forced fitting system with a corrugation to prevent the tube from sliding longitudinally within its support. However, such a system is not very resistant to different gaps between different connecting subtitles when the reactor temperature rises. Almost unchanged, this expansion leads to diameter and longitudinal deformation, which damages the connection in a relatively short period of operation.
본 발명의 목적은 특히 간단하고 용이한 수단을 사용함으로써 내구성이 있으며 견고하게 결합할 수 있는 안내관을 원자로 연료조립체의 단부판에 고정하는 장치를 제공하는 것이다.It is an object of the present invention to provide a device for fixing a guide tube to an end plate of a nuclear reactor fuel assembly which is particularly durable and rigidly coupled by using simple and easy means.
본 발명의 따른 장치는, 2개의 외측 쇼울더를 구비한 슬리이브, 슬리이브에 용접되며 제1외측 쇼울더에까지 슬리이브상에 계합된 안내관의 신장된 단부를 조이는 슬리이브에 억지로끼워 맞춰진 페루울 및 그 제2쇼울더가 상부판의 쇼울더와 당접하고 슬리이비의 상단부가 조립체의 단부판의 개구부의 상부에 용접된 그 속에 상기 슬리이브가 배치된 쇼울더를 구비한 단부판내의 개구부를 포함한다.The apparatus according to the invention comprises a sleeve having two outer shoulders, a Peru wool that is welded to the sleeve and is forcibly fitted to the sleeve which tightens the elongated end of the guide tube engaged on the sleeve to the first outer shoulder and The second shoulder includes an opening in an end plate having a shoulder in which the sleeve is disposed in contact with the shoulder of the top plate, the upper end of the sleeve being welded to the top of the opening of the end plate of the assembly.
하기 서술과 첨부된 참고 도면으로 부터 본 발명이 더욱 잘 이해될 것이다.The invention will be better understood from the following description and the accompanying drawings.
첨부 도면은 지르칼로이 안내관(1)과 PWR식 원자로의 연료 조립체의 스텐레스강 단부판(2)을 도시한다. 본 발명에 따라 안내관(1)이 스텐레스강 슬리이브(3)와 스텐레스강 페루울(4) 사이에 억지 끼워 맞추어진다. 슬리이브(3)의 외측 표면은 하부 위치(5)에 1개와 상부 위치(6)에 다른 1개인 2개의 쇼울더를 지닌다. 상부 단부판(2)은 다수의 개구부(7)를 가지며, 그중 1개 즉 개구부(7a)는 그 하부에 쇼울더(8)를 가진다.The accompanying drawings show a Zircaloy guide tube 1 and a stainless steel end plate 2 of the fuel assembly of the PWR reactor. According to the invention, the guide tube 1 is forcibly fitted between the stainless steel sleeve 3 and the stainless steel Peru wool 4. The outer surface of the sleeve 3 has two shoulders, one in the lower position 5 and the other in the upper position 6. The upper end plate 2 has a plurality of openings 7, one of which has a shoulder 8 at the bottom thereof.
안내관(1)은 상부 단부판(2)에 다음과 같이 고정된다.The guide tube 1 is fixed to the upper end plate 2 as follows.
처음에, 안내관(1)의 상단부가 슬리이브(3)의 쇼울더(5)와 계합할 때까지 안내관의 상부의 팽창된 단부(9)는 슬리이브(3)의 하부의 주위와 계합한다. 그 후 조립체는 슬리이브(3)의 페루울(4) 사이에 안내관(1)의 단부(9)를 억지 끼워 맞추도록 스텐레스강 페루울(4)에 의해 씌워진다. 이 페루울(4)의 끼워 맞춤 동작은 예를들어 나사 밀기 수단에 의해 수행된다. 그래서, 페루울(4)은 슬리이브(3)에 그 제2외측 쇼울더(6)의 주위까지 끼워지며, 최종적으로 환상 용접(10)에 의해 슬리이브(3)에 용접된다. 이때, 안내관(1), 슬리이브(3) 및 페루울(4)은 슬리이브(3)의 제2외측 쇼울더(6)가 단부판(2)의 개구부(7a)의 쇼울더(8)와 당접할 때 까지 단부판(2)의 개구부(7a)내로 도입되는 조립체를 형성한다. 이때, 슬리이브(3)의 상부 단부는 단부판(2)의 상부 표면과 레벨이 같아지며, 환상 용접 비이드(11)는 슬리이브(3), 즉 안내관(1)과 페루울(4)을 동시에 단부판(2)에 고정할 수 있다.Initially, the expanded end 9 of the upper part of the guide tube engages with the periphery of the lower part of the sleeve 3 until the upper end of the guide tube 1 engages the shoulder 5 of the sleeve 3. . The assembly is then covered by the stainless steel Peru wool 4 to forcibly fit the end 9 of the guide tube 1 between the Peru wool 4 of the sleeve 3. The fitting operation of this Peru wool 4 is performed by, for example, screw pushing means. Thus, the Peru wool 4 is fitted to the sleeve 3 to the periphery of the second outer shoulder 6 and finally welded to the sleeve 3 by the annular welding 10. At this time, the guide tube 1, the sleeve 3 and the peruvian wool 4 have a second outer shoulder 6 of the sleeve 3 with the shoulder 8 of the opening 7a of the end plate 2; The assembly is introduced into the opening 7a of the end plate 2 until it abuts. At this time, the upper end of the sleeve 3 is the same level as the upper surface of the end plate 2, the
이렇게 제조된 연결 장치는 안내관(1)을 단부판(2)에 신뢰할 수 있게 완전히 고정하며, 역시 슬리이브(3)에 고정된 페루울(4)이 안내관(1)의 상부의 팽창된 부분을 전체적으로 씌우고 있으므로 부품의 왕복이 동을 제한하는 각 쇼울더에 의하여 종방향과 직경 방향의 판의 변형을 막을 수 있는 것이다.The connection device thus produced reliably and completely secures the guide tube 1 to the end plate 2, and the Peru wool 4, which is also fixed to the sleeve 3, is expanded in the upper part of the guide tube 1. Since the part is covered as a whole, each shoulder which limits the reciprocation of the part can prevent deformation of the plate in the longitudinal direction and the radial direction.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019800002256A KR830001692B1 (en) | 1980-06-09 | 1980-06-09 | Guide tube fixture of reactor fuel assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019800002256A KR830001692B1 (en) | 1980-06-09 | 1980-06-09 | Guide tube fixture of reactor fuel assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR830003112A KR830003112A (en) | 1983-05-31 |
| KR830001692B1 true KR830001692B1 (en) | 1983-08-29 |
Family
ID=19216748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019800002256A KR830001692B1 (en) | 1980-06-09 | 1980-06-09 | Guide tube fixture of reactor fuel assembly |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR830001692B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011108802B4 (en) * | 2011-07-29 | 2013-02-21 | Areva Np Gmbh | Connection between control rod guide tube and drive housing tube of a nuclear reactor |
-
1980
- 1980-06-09 KR KR1019800002256A patent/KR830001692B1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| KR830003112A (en) | 1983-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4416848A (en) | Device for fixing a guide tube | |
| US4990304A (en) | Instrumentation tube features for reduction of coolant flow-induced vibration of flux thimble tube | |
| GB1466887A (en) | Fuel assembly for a nuclear reactor | |
| US4155807A (en) | Core and transition fuel assembly for a nuclear reactor | |
| ES8501559A1 (en) | Fuel-element bundle for a nuclear reactor. | |
| US3510397A (en) | Spacer for the fuel rods of the fuel element of a nuclear reactor | |
| JPH02196997A (en) | Exchange of defective fuel rod for fuel assembly of light water reactor | |
| US5282233A (en) | Low pressure drop easy load end cap | |
| CN110853778B (en) | Irradiation device for realizing real-time measurement of axial length change of fuel element | |
| EP0232187B1 (en) | Thimble guide extender | |
| US3105026A (en) | Fuel elment for nuclear reactors | |
| ES539933A0 (en) | PIPE ASSEMBLY FOR TUBE FLANGE NUCLEAR REACTOR CONTROL ROD GUIDE. | |
| GB2077989A (en) | Methods of assembling and disassembling spider and burnable poison rod structures for nuclear reactors | |
| US4347966A (en) | Method for fixing a guide tube of a nuclear reactor fuel assembly | |
| GB2186735A (en) | Vibration-damping extender for a thimble guide | |
| EP0229704B1 (en) | Thimble guide assembly | |
| KR830001692B1 (en) | Guide tube fixture of reactor fuel assembly | |
| JPH0631750B2 (en) | Fuel assembly upper nozzle mounting structure | |
| ES8703045A1 (en) | Method of assembling a nuclear reactor fuel assembly | |
| US4839135A (en) | Anti-vibration flux thimble | |
| CN1078822A (en) | The vibration damper of one damping tube-like piece vibration | |
| US4067772A (en) | Rod-shaped components between fuel elements of boiling-water reactors | |
| KR930005578B1 (en) | Individual source positioning mechanism for a nuclear reactor fuel assembly | |
| JPH07198891A (en) | Method for preventing scratch to fuel rod during fuel bundle assembling | |
| IL30080A (en) | Fuel assembly with solid end-fitting |