FR2382749A1 - Transportation vessel for spent nuclear fuel - has heat shield protecting contents from external fire by bulging bimetal plate - Google Patents

Transportation vessel for spent nuclear fuel - has heat shield protecting contents from external fire by bulging bimetal plate

Info

Publication number
FR2382749A1
FR2382749A1 FR7707229A FR7707229A FR2382749A1 FR 2382749 A1 FR2382749 A1 FR 2382749A1 FR 7707229 A FR7707229 A FR 7707229A FR 7707229 A FR7707229 A FR 7707229A FR 2382749 A1 FR2382749 A1 FR 2382749A1
Authority
FR
France
Prior art keywords
container
plate
bimetal plate
bimetal
void
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.)
Granted
Application number
FR7707229A
Other languages
French (fr)
Other versions
FR2382749B1 (en
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.)
Foster Wheeler (London) Ltd
Original Assignee
Foster Wheeler (London) Ltd
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 Foster Wheeler (London) Ltd filed Critical Foster Wheeler (London) Ltd
Priority to FR7707229A priority Critical patent/FR2382749A1/en
Publication of FR2382749A1 publication Critical patent/FR2382749A1/en
Application granted granted Critical
Publication of FR2382749B1 publication Critical patent/FR2382749B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/06—Details of, or accessories to, the containers
    • G21F5/10—Heat-removal systems, e.g. using circulating fluid or cooling fins

Abstract

The container comprises a bimetal plate fitted to the external surface of the container. This bimetal plate is composed of two metal plates possessing different coeffts. of thermal expansion; the outer plate has a larger coefft. of expansion than the inner plate and both the plates are firmly connected together at their edges and fixed to the outer face of the container. The surface of the bimetal plate facing inwards towards the container and the external surface of the container itself are finished to a high polish and are in intimate thermally conducting contact. There may also be a further metal plate between the bimetal plate and the outer face of the container; this plate has a high polish on the side facing away from the container. If the container is subjected to an external fire, the outer bimetal plate immediately buckles outwards and creates a void (virtually a vacuum) between it and the inner plate or surface of the container. Since the two surfaces of this void are highly polished, very little radiation of heat across the void takes place and the contents of the container are largely protected from the external heat.
FR7707229A 1977-03-04 1977-03-04 Transportation vessel for spent nuclear fuel - has heat shield protecting contents from external fire by bulging bimetal plate Granted FR2382749A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7707229A FR2382749A1 (en) 1977-03-04 1977-03-04 Transportation vessel for spent nuclear fuel - has heat shield protecting contents from external fire by bulging bimetal plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7707229A FR2382749A1 (en) 1977-03-04 1977-03-04 Transportation vessel for spent nuclear fuel - has heat shield protecting contents from external fire by bulging bimetal plate

Publications (2)

Publication Number Publication Date
FR2382749A1 true FR2382749A1 (en) 1978-09-29
FR2382749B1 FR2382749B1 (en) 1982-03-12

Family

ID=9187936

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7707229A Granted FR2382749A1 (en) 1977-03-04 1977-03-04 Transportation vessel for spent nuclear fuel - has heat shield protecting contents from external fire by bulging bimetal plate

Country Status (1)

Country Link
FR (1) FR2382749A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1322534A (en) * 1961-05-05 1963-03-29 Atomic Energy Authority Uk Refractory vessel
US3851179A (en) * 1974-02-05 1974-11-26 Atomic Energy Commission Shipping cask neutron and heat shield

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1322534A (en) * 1961-05-05 1963-03-29 Atomic Energy Authority Uk Refractory vessel
US3851179A (en) * 1974-02-05 1974-11-26 Atomic Energy Commission Shipping cask neutron and heat shield

Also Published As

Publication number Publication date
FR2382749B1 (en) 1982-03-12

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Legal Events

Date Code Title Description
ST Notification of lapse