ES486406A1 - Improvements in thermal treatment devices to prolong the duration of the life of pressure vessels, in particular reactors at pressure of reactors. (Machine-translation by Google Translate, not legally binding) - Google Patents

Improvements in thermal treatment devices to prolong the duration of the life of pressure vessels, in particular reactors at pressure of reactors. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES486406A1
ES486406A1 ES486406A ES486406A ES486406A1 ES 486406 A1 ES486406 A1 ES 486406A1 ES 486406 A ES486406 A ES 486406A ES 486406 A ES486406 A ES 486406A ES 486406 A1 ES486406 A1 ES 486406A1
Authority
ES
Spain
Prior art keywords
reactors
pressure
pressure vessel
holding body
prolong
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES486406A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kraftwerk Union AG
Original Assignee
Kraftwerk Union AG
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
Priority claimed from DE2851925A external-priority patent/DE2851925C2/en
Priority claimed from DE2936694A external-priority patent/DE2936694C2/en
Application filed by Kraftwerk Union AG filed Critical Kraftwerk Union AG
Publication of ES486406A1 publication Critical patent/ES486406A1/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C13/00—Pressure vessels; Containment vessels; Containment in general
    • G21C13/08—Vessels characterised by the material; Selection of materials for pressure vessels
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Furnace Details (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

For recovery tempering of a reactor pressure vessel (1), an insulating hollow-cylindrical holding body (3) carrying the heating device (2) is inserted into the emptied pressure vessel. The holding body (3) is brought into engagement, making a seal, with the cover flange (1f1) and the inner periphery of the bottom sphere (1d) of the pressure vessel (1) in such a way that a convection space (11) is formed between the holding body and the thermal shield (9). The holding body (3) carries a heating device (2), by means of which a stream of hot air or hot gas can be generated which can be passed through the convection space (11), from there to the annular gap (12) formed between the thermal shield and the pressure vessel wall, and from there back again to the heating elements (2a).
ES486406A 1978-11-30 1979-11-28 Improvements in thermal treatment devices to prolong the duration of the life of pressure vessels, in particular reactors at pressure of reactors. (Machine-translation by Google Translate, not legally binding) Expired ES486406A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2851925A DE2851925C2 (en) 1978-11-30 1978-11-30 Heat treatment device for extending the service life of a pressure vessel, in particular a reactor pressure vessel
DE2936694A DE2936694C2 (en) 1979-09-11 1979-09-11 Heat treatment device for extending the service life of a pressure vessel, in particular a reactor pressure vessel

Publications (1)

Publication Number Publication Date
ES486406A1 true ES486406A1 (en) 1980-06-16

Family

ID=25776683

Family Applications (1)

Application Number Title Priority Date Filing Date
ES486406A Expired ES486406A1 (en) 1978-11-30 1979-11-28 Improvements in thermal treatment devices to prolong the duration of the life of pressure vessels, in particular reactors at pressure of reactors. (Machine-translation by Google Translate, not legally binding)

Country Status (4)

Country Link
CH (1) CH643300A5 (en)
ES (1) ES486406A1 (en)
FR (1) FR2442891A1 (en)
IT (1) IT1127669B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5037604A (en) * 1989-06-19 1991-08-06 Westinghouse Electric Corp. Coffer dam for temporary shielding of reactor vessel internals
US5009836A (en) * 1989-06-19 1991-04-23 Westinghouse Electric Corp. Method for temporary shielding of reactor vessel internals
US5264056A (en) * 1992-02-05 1993-11-23 Electric Power Research Institute, Inc. Method and apparatus for annealing nuclear reactor pressure vessels
US5185123A (en) * 1992-04-10 1993-02-09 Porowski Jan S Apparatus for annealing walls of nuclear reactors

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2464248A (en) * 1944-10-05 1949-03-15 Babcock & Wilcox Co Stress relieving method
GB853566A (en) * 1958-09-15 1960-11-09 Vickers Electrical Co Ltd Improvements relating to the stress-relief of large metal vessels by electrical heating
US3148272A (en) * 1962-10-23 1964-09-08 Aitken Products Inc Applicator for heat treating refractory linings of ladles
GB1187190A (en) * 1968-11-08 1970-04-08 David W Groom Electric Furnace.
US3809608A (en) * 1972-05-10 1974-05-07 Westinghouse Electric Corp Reactor vessel annealing apparatus
GB1457901A (en) * 1973-01-05 1976-12-08 Hotwork Ltd Method and apparatus for heating the interior and structure of large vessels or enclosures photographic method of forming dye images

Also Published As

Publication number Publication date
IT1127669B (en) 1986-05-21
FR2442891B1 (en) 1983-05-13
CH643300A5 (en) 1984-05-30
IT7927687A0 (en) 1979-11-29
FR2442891A1 (en) 1980-06-27

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