EP2814754A1 - Dispositif de fermeture pour récipient destiné au transport de matière radioactive - Google Patents

Dispositif de fermeture pour récipient destiné au transport de matière radioactive

Info

Publication number
EP2814754A1
EP2814754A1 EP13704126.5A EP13704126A EP2814754A1 EP 2814754 A1 EP2814754 A1 EP 2814754A1 EP 13704126 A EP13704126 A EP 13704126A EP 2814754 A1 EP2814754 A1 EP 2814754A1
Authority
EP
European Patent Office
Prior art keywords
closure device
bolt
comb
head
closure
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
EP13704126.5A
Other languages
German (de)
English (en)
Other versions
EP2814754B1 (fr
Inventor
Franz Hilbert
Alois Korn
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.)
Daher Nuclear Technologies GmbH
Original Assignee
Nuclear Cargo und Service GmbH
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 Nuclear Cargo und Service GmbH filed Critical Nuclear Cargo und Service GmbH
Publication of EP2814754A1 publication Critical patent/EP2814754A1/fr
Application granted granted Critical
Publication of EP2814754B1 publication Critical patent/EP2814754B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00Transportable or portable shielded containers
    • G21F5/06Details of, or accessories to, the containers
    • G21F5/12Closures for containers; Sealing arrangements
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05CBOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C1/00Fastening devices with bolts moving rectilinearly
    • E05C1/004Fastening devices with bolts moving rectilinearly parallel to the surface on which the fastener is mounted
    • E05C1/006Fastening devices with bolts moving rectilinearly parallel to the surface on which the fastener is mounted parallel to the wing edge
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00Transportable or portable shielded containers
    • G21F5/015Transportable or portable shielded containers for storing radioactive sources, e.g. source carriers for irradiation units; Radioisotope containers
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00Transportable or portable shielded containers
    • G21F5/06Details of, or accessories to, the containers
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00Closure fasteners
    • Y10T292/08Bolts
    • Y10T292/096Sliding
    • Y10T292/1014Operating means

Definitions

  • Locking device for containers for transporting radioactive substances
  • the invention relates to a closure device, in particular for containers for the transport of radioactive substances, having a first and a second component, each having a comb-like portion, wherein the comb-like portions are interspersed with locked closure device by a bolt element.
  • the invention relates to an arrangement for the transport of in particular uranium hexafluoride, comprising an outer container composed of a first and a second shell, wherein the shells are lockable via at least one closure device having a first and a second component, each having a comb-like portion, wherein the comb-like portions are interspersed with a locked closure device by a bolt element.
  • the invention relates to a closure device or a closure system of containers for the transport of radioactive substances, the
  • Uranium hexafluoride is transported in cylindrical steel containers. These containers are specified in ISO 7195 "Packaging of Uranium Hexafluoride (UF 6 ) for Transport” or in ANSI N14.1 "Uranium Hexafluoride - Packaging for Transport”. During transport, these containers must meet the requirements of TS-R-1 "Regulations for the Steel containers for uranium hexafluoride with an enrichment of more than 1% Uranium-235 uranium-235 in uranium are enclosed in a protective container during transport in order to ensure compliance with the requirements of International Transport Safety Steel containers, protective containers and the contents of uranium hexafluoride constitute a package within the meaning of the regulations.
  • the required protective function is provided by a protective packaging that completely surrounds the steel cylinder filled with uranium hexafluoride.
  • the protective packaging consists of inner and outer shell z. B. made of sheet metal, the shock absorption and thermal insulation z. B. enclose foam.
  • the protective packaging is divided into a lower and upper half-shell to enable loading and unloading. The two half-shells shall be interlocked by means of a closure which ensures the sealing function in the above-mentioned tests in accordance with items 1 to 5.
  • the transport of the packages is usually carried out by means of 20 'ISO flatracks, which are equipped on the bottom side with suitable carriers.
  • 20 'ISO flatracks which are equipped on the bottom side with suitable carriers.
  • each up to 4 packages are bolted with their longitudinal axis aligned transversely to the direction of travel on the carriers.
  • the empty protective packaging is delivered bolted to flatracks at the suppliers of cylinders filled with uranium hexafluoride. There, preferably only the upper half shells are removed, the lower half shells loaded with the cylinders and the upper half shells reassembled.
  • the lower half shells remain firmly mounted on the flatracks. Due to the dimensions, the distances between the individual half-shells are limited to a few cm.
  • a classic locking system consists of screw and nut. This has been used for decades for the specified purpose. At the top and bottom shell each more devices are attached to the outside, which are braced against each other by a respective bolt with nut.
  • the "screw and nut" design meets the safety requirements without restrictions, but the handling is difficult and time-consuming, since greater torques have to be applied to ensure the closure function, and in particular in tight spaces, the application of this torque is not guaranteed
  • Locking systems are actuated by eg impact wrenches, which leads to high wear and correspondingly high repair costs, however opening of the locking system is also possible with simple hand tools, so that even unauthorized persons could gain access to the transported goods.
  • Another locking system includes pins with split pin / ball lock pins.
  • This closure system has been used for packaging closures for decades.
  • Ball lock pins are regularly used in the aerospace industry. It consists of a central part with a hole, over which a forked or tubular part with a suitable bore is slipped.
  • a locking device with bolts and forks for securing a lid of a shielding container is the DD-A-150 811 refer to.
  • the present invention has the object, a closure device and an arrangement of the type mentioned in such a way that damage by mechanical shock and shear stress is omitted, a sufficient tolerance between the closure device forming elements is given to allow a low-maintenance operation, without, however, disadvantages in terms of locking must be taken into account.
  • closure device should be able to be handled in a simple manner and economically by a person. At the same time, however, it should be ensured that unauthorized persons can not readily open the closure device.
  • a closure device of the aforementioned type is characterized in particular by the fact that the bolt element has a head with at least one receiving recess running transversely to the longitudinal axis of the bolt element, that at least one of the components has a passage opening, the bolt passing through the comb-like sections on the at least one receiving recess is aligned, and that when the locking device is locked in the through hole, an element is fixed, which extends partially in the recess.
  • the head of the bolt has a flat geometry and has in section rectangular head portions which extend symmetrically to the longitudinal axis of the bolt and protrude beyond the circumference of the bolt, and in that each component has a preferably groove-like recess which accommodates one of the head sections.
  • a receiving recess is provided in each head section, so that always a receiving recess is aligned with the passage opening, when the shank of the bolt passes through the comb-like structure, so their aligned aligned holes.
  • the element fixed in the passage opening is preferably a screw element which can be screwed into the passage opening.
  • the screw should have a coded head to make it difficult for unauthorized persons opening at least.
  • Each component has in particular a cuboid or block geometry, wherein the comb-like section originates from a first longitudinal side or is designed as such.
  • the passage opening then starts from the longitudinal side of the component, which lies opposite the first longitudinal side.
  • closure blocks which are resistant to mechanical shock and shear stress
  • the block or cuboidal components which may also be referred to as closure blocks may consist of solid steel parts and the bolt and its security within the contour the relevant massive components lies.
  • the closure blocks the interaction between the holes passing through the comb-like structure and the bolt, and the groove-like recesses receiving the head portions of the bolt, can be grossly tolerated without detriment to the function. As a result, a low-maintenance operation is guaranteed.
  • the fixing so the screw that performs the function of a locking screw, must be tightened only with low torque because the essential closure function is provided by the connection between the comb-shaped structure and the bolt.
  • the closure device can be handled by a person due to the construction according to the invention.
  • the locking screw can be tightened and loosened by means of a simple hand tool.
  • the bolt itself can be pulled out or inserted manually.
  • a coded screw head of the securing screw prevents opening of the closure device by persons who have no access to the coded tool.
  • An arrangement for the transport of preferably uranium hexafluoride of the type mentioned above is characterized in that the bolt element has a head with at least one receiving recess extending transversely to the longitudinal axis of the bolt element, that at least one of the components has a passage opening, the bolt passing through the comb-like sections the at least one receiving recess is aligned, and that, when the closure device is locked, an element is fixed in the passage opening and extends in regions in the receiving recess.
  • 1 is a plan view of a closure device
  • FIG. 2 is a front view of the closure device according to FIG. 1, FIG.
  • FIG. 4 is a plan view of the closure device of Fig. 1,
  • FIG. 5 shows an isometric view of the closure device according to FIG. Fig. 1, partially in exploded view
  • Fig. 6 is a schematic representation of a transport container with closure devices.
  • FIG. 6 shows a schematic illustration of a container 110 for transporting, in particular, radioactive substances such as uranium hexafluoride, it being possible to provide a structure as can be deduced from WO-A-2010/043534.
  • the outer container 110 consists of two shells 112, 114, which can be locked for transport via locking devices 116, 118, 120. From the drawings, it can be seen that the locking devices are arranged on longitudinal sides of the container 110, without this being limited by the teaching according to the invention. Also, more or fewer than the three closure devices 116, 118, 120 may be present along each longitudinal side.
  • FIGS. 1 to 5 show, purely in principle, the structure of one of the closure devices 116, 118, 120, which have an identical construction.
  • the corresponding closure device which is identified in FIG. 1 by the reference numeral 10, consists of two block-like components 12, 14 which along each longitudinal side 16, 18 have a comb-like portion 20, 22 to form a comb-like structure.
  • the comb-like projections of the comb-like structures 20, 22 are in alignment with composite components 12, 14 into one another bores 24, which are penetrated by a bolt 26 when the locking device 10 is locked.
  • the bolt 26 has a non-threaded shaft 28 and a head 30 which has a rectangular geometry in longitudinal section and has over the peripheral surface of the shaft 28 protruding head portions 32, 34, each having a transversely to the longitudinal axis of the bolt 26 extending receiving recess 36, 38.
  • an opening 40 is further provided to the bolt by means of z. B. a tool especially when pulling out of the closure device 10 to capture.
  • the upper block-like component or component 14 also to be referred to as a closure block-passes through a through-opening 42 extending transversely to the longitudinal axis 27 of the bolt 26, which consists of an inner cylindrical section 44 with an internal thread 46 and an outer cylindrical portion 48 of larger cross-section, which is freely accessible.
  • the passage opening 42 runs parallel to the front or rear side of the block-like component 14.
  • a fuse screw 50 can be screwed.
  • the locking screw 50 engages with its front end 52 in the groove-like recess 38 of the bolt head 30 when the closure blocks 12, 14 are assembled, so the comb-like portions 20, 22 interlock and the bore 24 freely accessible and properly penetrated by the shaft 28 is.
  • the screw 50 has a head 58 with coding, so that detachment is possible only with a special tool.
  • the closure device 10 according to the invention is resistant to mechanical impact and shear stress, since the bolt 26 extends within the contour of the components 12, 14, in particular made of solid steel, ie their comb-like structures 20, 22.
  • the closure blocks 12, 14 with their comb-like sections 20, 22 and the penetrated by the bolt 26 holes 24, the bolt 26 itself and the groove-like receptacles 54, 56 for the bolt head sections 32, 34 can be roughly tolerated without affecting the function. As a result, a low-maintenance operation is guaranteed.
  • the locking screw 50 must be tightened with little torque, since the main locking function by the connection of the comb-like structure, so the intermeshing comb-like portions 20, 22 of the components 12, 14 and the bolt 26 takes place.
  • the locking screw 50 can be tightened and loosened by means of a simple hand tool.
  • the bolt 26 can be manually inserted into the bore 24 or pulled out of it, wherein the opening 40 provides assistance.

Abstract

La présente invention concerne un dispositif de fermeture (10), en particulier pour des récipients (110) destinés au transport de matières radioactives, comprenant un premier et un second composants (12, 14) ayant chacun une section (20, 22) en forme de peigne, les sections en forme de peigne étant traversées par un élément de cheville (26) lorsque le dispositif de fermeture est verrouillé. Pour éviter les dommages dus aux chocs et aux contraintes de cisaillements mécaniques et permettre une tolérance suffisante entre les éléments formant le dispositif de fermeture sans devoir s'accommoder de désavantages en termes de verrouillage, il est proposé que l'élément de cheville (26) présente une tête (30) avec au moins un évidement de logement (36, 38) traversant l'axe longitudinal (27) de l'élément de cheville, qu'au moins l'un des composants présente une ouverture traversante (42) qui est alignée avec au moins un évidement de logement (36, 38) lorsque la cheville traverse les sections (20, 22) en forme de peigne (20, 22), et qu'un élément (50) s'étendant partiellement dans l'évidement de logement soit fixé dans l'ouverture traversante lorsque le dispositif de fermeture est verrouillé.
EP13704126.5A 2012-02-17 2013-02-15 Dispositif de fermeture pour récipient destiné au transport de matière radioactive Active EP2814754B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012101300A DE102012101300B3 (de) 2012-02-17 2012-02-17 Verschlusseinrichtung für Behälter zum Transport radioaktiver Stoffe
PCT/EP2013/053036 WO2013120982A1 (fr) 2012-02-17 2013-02-15 Dispositif de fermeture pour récipient destiné au transport de matière radioactive

Publications (2)

Publication Number Publication Date
EP2814754A1 true EP2814754A1 (fr) 2014-12-24
EP2814754B1 EP2814754B1 (fr) 2016-08-31

Family

ID=47714124

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13704126.5A Active EP2814754B1 (fr) 2012-02-17 2013-02-15 Dispositif de fermeture pour récipient destiné au transport de matière radioactive

Country Status (10)

Country Link
US (1) US9704606B2 (fr)
EP (1) EP2814754B1 (fr)
JP (1) JP6342335B2 (fr)
CN (1) CN104271460B (fr)
BR (1) BR112014020046B1 (fr)
CA (1) CA2863744C (fr)
DE (1) DE102012101300B3 (fr)
HK (1) HK1203466A1 (fr)
RU (1) RU2586467C2 (fr)
WO (1) WO2013120982A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016007446A1 (de) * 2016-06-18 2017-12-21 G. Siempelkamp Gmbh & Co.Kg Schutzanordnung für Behälter während seines Transports

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DE1004996B (de) 1953-02-07 1957-03-21 Sebastian Troidl Kistenverschluss
DD150811A1 (de) * 1980-04-22 1981-09-16 Frank Drechsler Verschlusseinrichtung fuer einen deckel eines abschirmbehaelters
CA1155474A (fr) * 1981-07-29 1983-10-18 Verge, Louis A. Bavette anti-eclaboussement pour garde-boue de vehicule automobile
DE3201884A1 (de) * 1982-01-22 1983-08-04 Deutsche Gesellschaft für Wiederaufarbeitung von Kernbrennstoffen mbH, 3000 Hannover Verfahren zum verschliessen von radioaktive stoffe aufnehmenden behaeltern
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Also Published As

Publication number Publication date
RU2014137475A (ru) 2016-04-10
DE102012101300B3 (de) 2013-04-18
EP2814754B1 (fr) 2016-08-31
BR112014020046A2 (fr) 2017-06-20
US9704606B2 (en) 2017-07-11
CN104271460B (zh) 2017-09-08
BR112014020046B1 (pt) 2021-01-19
BR112014020046A8 (pt) 2017-07-11
WO2013120982A1 (fr) 2013-08-22
HK1203466A1 (en) 2015-10-30
JP6342335B2 (ja) 2018-06-13
US20150255182A1 (en) 2015-09-10
CN104271460A (zh) 2015-01-07
RU2586467C2 (ru) 2016-06-10
CA2863744A1 (fr) 2013-08-22
JP2015514964A (ja) 2015-05-21
CA2863744C (fr) 2019-05-07

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