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US3672247A - Apparatus and method for processing spent nuclear fuel elements - Google Patents

Apparatus and method for processing spent nuclear fuel elements Download PDF

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Publication number
US3672247A
US3672247A US738336A US3672247DA US3672247A US 3672247 A US3672247 A US 3672247A US 738336 A US738336 A US 738336A US 3672247D A US3672247D A US 3672247DA US 3672247 A US3672247 A US 3672247A
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US
United States
Prior art keywords
casing
tube
shear
translation
support
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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 - Lifetime
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US738336A
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English (en)
Inventor
Guy H Cherel
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Saint Gobain Techniques Nouvelles SA
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Saint Gobain Techniques Nouvelles SA
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
    • G21C19/34—Apparatus or processes for dismantling nuclear fuel, e.g. before reprocessing ; Apparatus or processes for dismantling strings of spent fuel elements
    • G21C19/36—Mechanical means only
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/929—Particular nature of work or product
    • Y10S83/93—Radioactive
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0505—With reorientation of work between cuts
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0524—Plural cutting steps
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2074—Including means to divert one portion of product from another
    • Y10T83/2083—Deflecting guide
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2209—Guide
    • Y10T83/2216—Inclined conduit, chute or plane
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/222—With receptacle or support for cut product
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4637—With means to guide, position, or present work to work-feed means
    • Y10T83/464—Means to transport work to work-feed means
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6476—Including means to move work from one tool station to another
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6476—Including means to move work from one tool station to another
    • Y10T83/6478—Tool stations angularly related
    • Y10T83/648—Work manipulated between tool stations
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6571—With means to store work articles
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/707—By endless band or chain knife
    • Y10T83/7083—With cutter other than endlessly orbiting type
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/707—By endless band or chain knife
    • Y10T83/7101—With tool in-feed
    • Y10T83/7114—Including means to permit arcuate in-feed motion
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/707—By endless band or chain knife
    • Y10T83/7158—Including plural cutting zones
    • Y10T83/7164—With adjustment of separation between zones
    • Y10T83/7176—By screw-threaded means
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/707—By endless band or chain knife
    • Y10T83/7158—Including plural cutting zones
    • Y10T83/7189—Comprising plural bands
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/727—With means to guide moving work
    • Y10T83/739—Positively confines or otherwise determines path of work
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/748—With work immobilizer
    • Y10T83/7487—Means to clamp work
    • Y10T83/7547—Liquid pressure actuating means
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8772—One tool edge of tool pair encompasses work [e.g., wire cutter]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8858—Fluid pressure actuated

Definitions

  • Such elements are utilized in atomic piles and embody a central active portion containing the nuclear combustible, and two inert ends or extremities, all enclosed in a cartridge or sheath which may, for example, be of stainless steel or of an alloy of zirconium known as Zircaloy. After a period of irradiation in the pile the combustible must be treated or processed for the purpose of restoring its purity to a predetermined value, by elimination or extraction therefrom of fission products so that it may be re-used.
  • FIG. 23 is a detail sectional view on line 23 23, FIG. 22;
  • a passageway 17 opens through one side wall of chamber 6 and extends outwardly and upwardly, FIG. 5, to open through the floor of enclosure 34, FIG. 3.
  • Spaced parallel rails 18 extend along this passageway to support a carriage 14 rolling on flanged wheels 19.
  • the carriage is elongated and has chains or cables 20, 21 attached at spaced points along its length. Chain also appears upon FIG. 5. These chains are connected at their other ends to Windlass means subsequently described, by which the carriage loaded with an element 1 may be pulled upwardly out of chamber 6, in guided translation on and along tracks 18.
  • the saws of one pair are identified generally at 72 and 73 where they are shown so located in enclosure 34 as to operate upon the nuclear elements moved to the left as viewed upon FIG. 10.
  • a second pair of such saws is, as previously noted, provided at 85, 86, FIG. 3, for operation upon elements 1 when moved to the right from the central position indicated, FIG. 10.
  • Each arm like 61a is provided with a sloping surface such as 61c, followed by a vertical surface forming a shoulder with the horizontal surface of the respective arm.
  • pulleys 88, 89 are journaled in superposed relation and guide a saw blade or band 90 in the manner conventional with ban saws.
  • the frame of saw 72 includes an abutment 91 threaded onto a shaft 92, FIG. 17, so that it may be adjusted on and along the shaft for engagement with the corresponding end of element 1.
  • the element is thereby accurately collocated with respect to blade 90, to assure that its out is in the correct plane normal to the longitudinal axis of the element.
  • Band saw pulley 89 is connected to be driven by a motor 93. There is one of these motors for each saw, located within enclosure 34, and each may protected by suitable sheathing of lead or like material, not shown.
  • Motor 56 is continued in operation until the element being moved thereby, rests upon the fixed supporting surfaces such as 1 12, 113, FIG. 14, with which all of the saws are provided. The motor is then stopped. Next, handwheels 79 and 84 are operated to move each saw 72, 73 along its tracks until each abutment like 91, FIGS. 14 and 17, is in contact with its respective end 2 of element 1. The saw motors like 93, of saws 72 and 73 are then energized and motor 56 is started in a direction which advances the element into the blades of the saw, to thereby cut off ends 2.
  • handwheel 221 is rotated until pointer 223 indicates on dial 222 that spout 192 is vertically above another selected pipe such as 199.
  • I-Iandwheel 215 is then reversely rotated to lower casing 192 until spout 192b is fully seated on the rim of the selected opening in the bottom wall 193a.
  • the apparatus is then in condition for further operation to fill the second pipe such as 199, with sheared fragments and detritus.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Sawing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Prostheses (AREA)
US738336A 1967-06-19 1968-06-19 Apparatus and method for processing spent nuclear fuel elements Expired - Lifetime US3672247A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR110858 1967-06-19

Publications (1)

Publication Number Publication Date
US3672247A true US3672247A (en) 1972-06-27

Family

ID=8633270

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Application Number Title Priority Date Filing Date
US738336A Expired - Lifetime US3672247A (en) 1967-06-19 1968-06-19 Apparatus and method for processing spent nuclear fuel elements

Country Status (9)

Country Link
US (1) US3672247A (sk)
BE (1) BE716737A (sk)
DE (1) DE1789115C3 (sk)
ES (1) ES354616A1 (sk)
FR (1) FR1587331A (sk)
GB (1) GB1238052A (sk)
LU (1) LU56293A1 (sk)
NL (1) NL6808604A (sk)
SE (1) SE344129B (sk)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000391A (en) * 1973-05-14 1976-12-28 Westinghouse Electric Corporation Nuclear reactor fuel element splitter
US4245532A (en) * 1977-10-20 1981-01-20 British Nuclear Fuels Limited Shear machine with replaceable shear assembly
US4383394A (en) * 1980-12-29 1983-05-17 General Electric Company Sample cutting device for irradiated components
US4664872A (en) * 1983-01-20 1987-05-12 Kraftwerk Union Aktiengesellschaft Device for disposing of elongated core instrumentation probes from nuclear reactors
US5060546A (en) * 1987-02-17 1991-10-29 Societe Generale Pour Les Techniques Nouvelles Method and apparatus for cutting irradiated fuel elements in the horizontal position by means of a blade-carrying carriage
US5957018A (en) * 1993-10-19 1999-09-28 Compagnie Generale Des Matieres Nucleaires Process and apparatus for cutting up by shearing of elements of a nuclear installation
US20090074524A1 (en) * 2007-09-14 2009-03-19 Alessandro Pirovano Section member cutting or drilling machine tool
US20130129031A1 (en) * 2011-11-21 2013-05-23 Westinghouse Electric Company Llc Apparatus for vertically segmenting a boiling water reactor control rod blade
US20240024976A1 (en) * 2020-11-03 2024-01-25 Joint Stock Company "Rosenergoatom" Arrangement and system for repairing the lining of a spent fuel pool

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4511499A (en) * 1982-03-18 1985-04-16 Westinghouse Electric Corp. Apparatus for dismantling and disposing of fuel assemblies
FR2527374A1 (fr) * 1982-05-18 1983-11-25 Commissariat Energie Atomique Dispositif de cisaillage d'assemblages combustibles irradies

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000391A (en) * 1973-05-14 1976-12-28 Westinghouse Electric Corporation Nuclear reactor fuel element splitter
US4245532A (en) * 1977-10-20 1981-01-20 British Nuclear Fuels Limited Shear machine with replaceable shear assembly
US4383394A (en) * 1980-12-29 1983-05-17 General Electric Company Sample cutting device for irradiated components
US4664872A (en) * 1983-01-20 1987-05-12 Kraftwerk Union Aktiengesellschaft Device for disposing of elongated core instrumentation probes from nuclear reactors
US5060546A (en) * 1987-02-17 1991-10-29 Societe Generale Pour Les Techniques Nouvelles Method and apparatus for cutting irradiated fuel elements in the horizontal position by means of a blade-carrying carriage
US5957018A (en) * 1993-10-19 1999-09-28 Compagnie Generale Des Matieres Nucleaires Process and apparatus for cutting up by shearing of elements of a nuclear installation
US20090074524A1 (en) * 2007-09-14 2009-03-19 Alessandro Pirovano Section member cutting or drilling machine tool
US20130129031A1 (en) * 2011-11-21 2013-05-23 Westinghouse Electric Company Llc Apparatus for vertically segmenting a boiling water reactor control rod blade
US9275766B2 (en) * 2011-11-21 2016-03-01 Westinghouse Electric Company Llc Apparatus for vertically segmenting a boiling water reactor control rod blade
US20240024976A1 (en) * 2020-11-03 2024-01-25 Joint Stock Company "Rosenergoatom" Arrangement and system for repairing the lining of a spent fuel pool

Also Published As

Publication number Publication date
DE1789115B2 (de) 1973-10-25
NL6808604A (sk) 1968-12-20
DE1789115A1 (de) 1972-06-08
FR1587331A (sk) 1970-03-20
ES354616A1 (es) 1970-02-16
DE1764523A1 (de) 1972-02-03
BE716737A (sk) 1968-12-18
GB1238052A (sk) 1971-07-07
SE344129B (sk) 1972-03-27
DE1764523B2 (de) 1972-10-05
LU56293A1 (sk) 1969-04-22
DE1789115C3 (de) 1974-05-22

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