RO85457B1 - Distance piece and process for manufacturing the same - Google Patents

Distance piece and process for manufacturing the same

Info

Publication number
RO85457B1
RO85457B1 RO109188A RO10918882A RO85457B1 RO 85457 B1 RO85457 B1 RO 85457B1 RO 109188 A RO109188 A RO 109188A RO 10918882 A RO10918882 A RO 10918882A RO 85457 B1 RO85457 B1 RO 85457B1
Authority
RO
Romania
Prior art keywords
sheath
well
sleeve
contact
spherical
Prior art date
Application number
RO109188A
Other languages
Romanian (ro)
Other versions
RO85457A2 (en
Inventor
Stefan Mehedinteanu
Constantin Galeriu
Florin Glodeanu
Original Assignee
Institutul De Reactori Nucleari
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Institutul De Reactori Nucleari filed Critical Institutul De Reactori Nucleari
Priority to RO109188A priority Critical patent/RO85457B1/en
Publication of RO85457A2 publication Critical patent/RO85457A2/en
Publication of RO85457B1 publication Critical patent/RO85457B1/en

Links

Classifications

    • 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

  • Fuel Cell (AREA)

Abstract

Inventia se refra la un element distantor ce se fixeaza pe teaca elementelor combustibile nucleare, în vederea pastrarii unor distante prescrise între acestea în timpul functionarii în reactorul nuclear, precum si la un procedeu de obtinere a sa. Elementul distantor, conform inventiei, este alcatuit dintr-un manson tubular sau poliedric, prevazut cu alveole sferice, prin intermediul carora de fixeaza pe teaca elementului combustibil nuclear, cu zone propriu-zise de distantare la contactul cu barele combustibile vecine, precum si cu opritorul de forma sferica sau semicilindrica, care nu ajung în contact cu teaca elementului combustibil decît în cazuri de suprasolicitari acceidentale, la contactul cu tubul de forta mansonul terminîndu-se cu o patina. Procedeul conforn inventiei, în scopul obtinerii unui manson tubular, consta în trageea la rece a tevi din zircaloy pe un dorn cu profilul tubular coresounzator, realizarea anvelopelor sferice, precum si a zonelor de distantare prin aplicarea de forta punctuale, precum si fixarea mansonului obtinut prin sudura prin puncte pe teaca elementului combustibil cu electrozii plasati în alveole. The invention relates to a spacer element which is fixed on the sheath of the nuclear fuel elements, in order to maintain the prescribed distances between them during operation in the nuclear reactor, as well as to a process for obtaining it. The spacer element, according to the invention, consists of a tubular or polyhedral sleeve, provided with spherical cells, by means of which it fixes on the sheath of the nuclear fuel element, with actual spacing areas at the contact with the neighboring fuel rods, as well as with the stopper. of spherical or semi-cylindrical shape, which do not come into contact with the sheath of the fuel element except in cases of accidental overloads, at the contact with the force tube the sleeve ending with a patina. The process according to the invention, in order to obtain a tubular sleeve, consists in cold drawing the zircaloy pipe on a mandrel with corrugated tubular profile, making spherical tires, as well as spacing areas by applying point force, as well as fixing the sleeve obtained by spot welding on the fuel element sheath with electrodes placed in the wells.

RO109188A 1982-12-01 1982-12-01 Distance piece and process for manufacturing the same RO85457B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO109188A RO85457B1 (en) 1982-12-01 1982-12-01 Distance piece and process for manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO109188A RO85457B1 (en) 1982-12-01 1982-12-01 Distance piece and process for manufacturing the same

Publications (2)

Publication Number Publication Date
RO85457A2 RO85457A2 (en) 1984-11-25
RO85457B1 true RO85457B1 (en) 1984-11-30

Family

ID=20112290

Family Applications (1)

Application Number Title Priority Date Filing Date
RO109188A RO85457B1 (en) 1982-12-01 1982-12-01 Distance piece and process for manufacturing the same

Country Status (1)

Country Link
RO (1) RO85457B1 (en)

Also Published As

Publication number Publication date
RO85457A2 (en) 1984-11-25

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