EP0635847A1 - Shielding device for a vessel in a nuclear installation - Google Patents

Shielding device for a vessel in a nuclear installation Download PDF

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Publication number
EP0635847A1
EP0635847A1 EP94111034A EP94111034A EP0635847A1 EP 0635847 A1 EP0635847 A1 EP 0635847A1 EP 94111034 A EP94111034 A EP 94111034A EP 94111034 A EP94111034 A EP 94111034A EP 0635847 A1 EP0635847 A1 EP 0635847A1
Authority
EP
European Patent Office
Prior art keywords
rod
shielding
shielding device
flange
shielding body
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
EP94111034A
Other languages
German (de)
French (fr)
Other versions
EP0635847B1 (en
Inventor
Hans Haller
Klaus Schreiner
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.)
ABB Reaktor GmbH
Original Assignee
Brown Boveri Reaktor GmbH
ABB Reaktor 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 Brown Boveri Reaktor GmbH, ABB Reaktor GmbH filed Critical Brown Boveri Reaktor GmbH
Publication of EP0635847A1 publication Critical patent/EP0635847A1/en
Application granted granted Critical
Publication of EP0635847B1 publication Critical patent/EP0635847B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/22—Drums; Headers; Accessories therefor
    • F22B37/221—Covers for drums, collectors, manholes or the like

Definitions

  • the invention relates to a shielding device, the shielding body of which can be inserted into an opening in a container of a nuclear facility.
  • Shielding devices of this type are generally known. If the container is a steam generator, its chamber can be accessed via the opening called a manhole for inspection or repair of the steam generator pipes. After a remote-controlled test or repair device has been introduced through the manhole into the steam generator chamber, the manhole should be closable with a shielding device during the test or repair work, the manhole opening possibly having to be made accessible and shielded several times during a test or repair process .
  • the task is to provide a shielding device with which the manhole opening can be shielded and released again several times in succession.
  • the shielding device has a flange attached to the container, leaving the opening cross section of the container free, that the flange carries a rod which projects parallel to the axis of the opening, that a connecting piece is arranged between the rod and the shielding body, and that the shielding body can be moved axially parallel to or arcuately around the rod.
  • the shielding body can be moved from the pivoted away position to the shielding position or vice versa in a few simple steps and with little expenditure of time.
  • the rod is provided, starting from its side facing the flange, with at least one guide groove which is helical at its end facing away from the flange and a region of the connecting piece which extends over the rod has a guide piece which can be moved along the guide groove.
  • the shielding body is equipped on the circumference with ball rollers.
  • the connecting piece can be detached from the container via a dovetail guide extending parallel to the rod axis is connected, wherein the dovetail guide can be locked in a predetermined position.
  • a locking device and possibly locking screws serve to maintain a selected position in the shielding and pivoting position.
  • the shielding container has fill and drain closures.
  • the rod preferably has a holding element which is articulated on a tab.
  • the shielding device according to the invention is described according to FIGS. 1 to 6 on the basis of various exemplary embodiments.
  • FIG. 1 and 2 show the partial area of a steam generator 1 with an opening 2 designed as a manhole, which serves as access to a steam generator chamber 3 during repair and inspection work.
  • the manhole is shielded with a shielding body 4 of a shielding device 5.
  • a flange 6 shown on a larger scale (FIG. 3) and FIG. 6 is fastened by means of screws 7 protruding from the front of the manhole projection.
  • a kind of bayonet connection is indeed possible in a simple and quick manner via the step-shaped elongated holes 8.
  • a rod 9 fastened to the flange 6 protrudes perpendicularly from the flange and thus extends parallel to the axis 10 of the manhole 2.
  • a sleeve-shaped connecting piece 11 shown larger in FIGS. 3, 4 and 5 overlaps the rod 9.
  • the connecting piece is provided with a dovetail guide 35 which engages in a corresponding counterpart of the shielding body 4 and thus produces a releasable connection between the connecting piece and the shielding body.
  • a locking screw 15 secures the position of the dovetail guide.
  • a part 12 carrying the dovetail guide of the connecting piece 11 is adjustable with pins 13 and fastened to the connecting piece 11 with screws 14. This results in an alignment between the preferably tubular rod 9 and the shielding body 4.
  • two diametrically opposed longitudinal grooves 16 begin at the rod end facing the flange and then merge into a helical course.
  • the longitudinal grooves 16 together with the helical grooves 17 form a guide groove 18 into which a guide piece 19 assigned to the connecting piece 11 (see also FIG. 5) engages with its nose-shaped projection 34.
  • the connecting piece 11 is assigned a locking screw 27 which acts in relation to the rod 9.
  • FIG. 1 shows the shielding body 4 in a position in front of the manhole 2, while in FIG. 2 the shielding body is inserted into the manhole.
  • the shielding body 4 which can be moved via the handles 21 (FIG. 3), it is filled into its retracted position with deionized water via an inlet opening 22 and emptied via an outlet opening 23 before being removed from the position in the manhole.
  • Ball rollers 24 which can be seen in FIG. 3 and which are embedded in the shielding body 4 on the circumferential side serve for easy mobility in the manhole.
  • the shielding body 4 according to FIG. 1 is penetrated by a ventilation line 25 in order to ensure the ventilation of the steam generator chamber 3.
  • a recess 26 on the shielding body 4 according to FIG. 2 is provided for the implementation of supply and disposal lines (not shown) for inspection and repair devices (also not shown).
  • the coupling of the shielding body 4 shown in FIG. 4 on a larger scale for carrying out a pivoting movement indicated in FIG. 6 about the rod 9 shows the locking screw 27 of the connecting piece 11, which locks the connecting piece after the pivoting movement of the shielding body carried by the connecting piece 4 serves. 4a, the shielding body 4 is retracted into the manhole Position shown.
  • a holder 28 for a set screw 29 fastened to the flange 6 forms, together with a ring 30 assigned to the shielding body 4, a locking device 31 securing the shielding body in its position retracted into the manhole.
  • the locking screw 29 of the ring 30 is locked.
  • a tab 32 is used to stabilize the rod 9, which is fastened to the flange 6 and carries a holding element 33 connected to the free end of the rod 9 (FIG. 1).
  • FIG. 6 which shows a view in the direction of arrow III of FIG. 1 on a scale that differs from FIG. 3, the shielding body 4 is shown in dash-dotted lines in its position pivoted away from the opening 2.

Abstract

Shielding devices of this type are difficult to handle in the case of multiple assembly and disassembly. To remove this disadvantage, the shielding device has a flange (6) which is fastened to the vessel and leaves the opening cross-section of the vessel (1) free. The flange carries a rod (9) projecting parallel to the axis of the opening. Between the rod and the shielding body (4) there is arranged a connecting piece (11), by means of which the shielding body can be moved with its axis parallel to the rod or in a curve shape around the rod. <IMAGE>

Description

Die Erfindung betrifft eine Abschirmeinrichtung, deren Abschirmkörper in eine Öffnung eines Behälters einer kerntechnischen Anlage einführbar ist.The invention relates to a shielding device, the shielding body of which can be inserted into an opening in a container of a nuclear facility.

Derartige Abschirmeinrichtungen sind allgemein bekannt. Ist der Behälter ein Dampferzeuger, so ist dessen Kammer über die als Mannloch bezeichnete Öffnung zur Inspektion oder Reparatur der Dampferzeugerrohre zugänglich. Nach dem eine fernbedienbare Prüf- oder Reparatureinrichtung durch das Mannloch in die Dampferzeugerkammer eingebracht ist, soll während der Prüf- oder Reparaturarbeiten das Mannloch mit einer Abschirmeinrichtung verschließbar sein, wobei während eines Prüf- oder Reparaturvorganges die Mannlochöffnung möglicherweise mehrmals zugänglich gemacht und wieder abgeschirmt werden muß.Shielding devices of this type are generally known. If the container is a steam generator, its chamber can be accessed via the opening called a manhole for inspection or repair of the steam generator pipes. After a remote-controlled test or repair device has been introduced through the manhole into the steam generator chamber, the manhole should be closable with a shielding device during the test or repair work, the manhole opening possibly having to be made accessible and shielded several times during a test or repair process .

Um die Strahlenwirkung für das Bedienungspersonal möglichst gering zu halten, stellt sich die Aufgabe, eine Abschirmeinrichtung anzugeben, mit der mehrmals in Folge die Mannlochöffnung abgechirmt und wieder freigegeben werden kann.In order to keep the radiation effect for the operating personnel as low as possible, the task is to provide a shielding device with which the manhole opening can be shielded and released again several times in succession.

Gelöst wird diese Aufgabe erfindungsgemäß dadurch, daß die Abschirmeineinrichtung einen am Behälter befestigten, den Öffnungsquerschnitt des Behälters freilassenden Flansch aufweist, daß der Flansch eine parallel zur Achse der Öffnung auskragende Stange trägt, daß zwischen der Stange und dem Abschirmkörper ein Verbindungsstück angeordnet ist, und daß der Abschirmkörper achsparallel zur oder bogenförmig um die Stange bewegbar ist.This object is achieved according to the invention in that the shielding device has a flange attached to the container, leaving the opening cross section of the container free, that the flange carries a rod which projects parallel to the axis of the opening, that a connecting piece is arranged between the rod and the shielding body, and that the shielding body can be moved axially parallel to or arcuately around the rod.

Nachdem die Abschirmeinrichtung erstmalig montiert ist, läßt sich der Abschirmkörper mit wenigen Handgriffen und mit geringem Zeitaufwand von der weggeschwenkten in die Abschirmposition oder umgekehrt bringen.After the shielding device has been installed for the first time, the shielding body can be moved from the pivoted away position to the shielding position or vice versa in a few simple steps and with little expenditure of time.

Zur zuverlässigen Führung des Abschirmkörpers ist die Stange von ihrer dem Flansch zugewandten Seite ausgehend mit wenigstens einer Führungsnut versehen, die an ihrem dem Flansch abgewandten Ende wendelartig ausgebildet ist und ein die Stange übergreifender Bereich des Verbindungsstückes einen entlang der Führungsnut verfahrbares Führungsstück aufweist.For reliable guiding of the shielding body, the rod is provided, starting from its side facing the flange, with at least one guide groove which is helical at its end facing away from the flange and a region of the connecting piece which extends over the rod has a guide piece which can be moved along the guide groove.

Um eine reibungsarme Führung entlang der Öffnungswandung zu erzielen, ist der Abschirmkörper umfangsseitig mit Kugelrollen ausgestattet.In order to achieve low-friction guidance along the opening wall, the shielding body is equipped on the circumference with ball rollers.

Damit die Montage der Abschirmeinrichtung schnell und zuverlässig vonstatten geht, ist vorgesehen, daß das Verbindungsstück über eine parallel zur Stangenachse erstreckte Schwalbenschwanzführung mit dem Behälter lösbar verbunden ist, wobei die Schwalbenschwanzführung in einer vorgebbaren Position arretierbar ist.So that the shielding device can be assembled quickly and reliably, it is provided that the connecting piece can be detached from the container via a dovetail guide extending parallel to the rod axis is connected, wherein the dovetail guide can be locked in a predetermined position.

Eine Feststellvorrichtung und gegebenenfalls Feststellschrauben dienen der Einhaltung einer einmal gewählten Position in der Abschirm- und Schwenkposition.A locking device and possibly locking screws serve to maintain a selected position in the shielding and pivoting position.

Zur Reduzierung des Gewichtes bei der Abschirm- und Schwenkposition weist der Abschirmbehälter Füll- und Entleerungsverschlüsse auf.To reduce the weight in the shielding and pivoting position, the shielding container has fill and drain closures.

Ver-, Entsorgungs- und Entlüftungsleitungen durchsetzen den Abschirmkörper.Supply, disposal and ventilation lines penetrate the shielding body.

Vorzugsweise weist die Stange ein Halteelement auf, das an einer Lasche angelenkt ist.The rod preferably has a holding element which is articulated on a tab.

Anhand verschiedener Ausführungsbeispiele wird gemäß Figur 1 bis 6 die erfindungsgemäße Abschirmeinrichtung beschrieben.The shielding device according to the invention is described according to FIGS. 1 to 6 on the basis of various exemplary embodiments.

Dabei zeigt die

Fig. 1
einen Teilbereich eines Dampferzeugers mit einem Mannloch und einem vor dem Mannloch angeordneten Abschirmkörper,
Fig. 2
eine Abschirmeinrichtung mit einem in das Mannloch eingeführten Abschirmkörper,
Fig. 3
eine Ansicht in Pfeilrichtung III der Fig. 1 in einem größeren Maßstab,
Fig. 4
eine Einzelheit IV einer Schwenkvorrichtung nach Fig. 1,
Fig. 4a
eine Verriegelung des Abschirmkörpers mit dem Dampferzeuger,
Fig. 5
einen Schnitt entlang der Linie V-V der Fig. 4 und
Fig. 6
eine Ansicht in Pfeilrichtung III der Fig. 1 in einem anderen Maßstab.
The shows
Fig. 1
a partial area of a steam generator with a manhole and a shielding body arranged in front of the manhole,
Fig. 2
a shielding device with a shielding body inserted into the manhole,
Fig. 3
2 shows a view in the direction of arrow III of FIG. 1 on a larger scale,
Fig. 4
a detail IV of a pivoting device according to FIG. 1,
Fig. 4a
locking the shielding body with the steam generator,
Fig. 5
a section along the line VV of Fig. 4 and
Fig. 6
a view in the direction of arrow III of FIG. 1 on a different scale.

Die Fig. 1 und 2 zeigen den Teilbereich eines Dampferzeugers 1 mit einer als Mannloch ausgebildeten Öffnung 2, die bei Reparatur- und Inspektionsarbeiten als Zugang zu einer Dampferzeugerkammer 3 dient. Sobald die erforderlichen, fernbedienbaren Inspektions- und Reparaturgeräte in die Dampferzeugerkammer 3 eingebracht sind, wird das Mannloch mit einem Abschirmkörper 4 einer Abschirmeinrichtung 5 abgeschirmt. Dazu ist ein in einem größeren Maßstab (Fig. 3) und Fig. 6 dargestellter Flansch 6 mittels stirnseitig vom Mannlochvorsprung vorstehender Schrauben 7 befestigt. Zwar gelingt über die stufenförmig ausgebildeten Langlöcher 8 auf einfache und schnelle Weise eine Art Bajonettverbindung.1 and 2 show the partial area of a steam generator 1 with an opening 2 designed as a manhole, which serves as access to a steam generator chamber 3 during repair and inspection work. As soon as the necessary, remote-controlled inspection and repair devices have been introduced into the steam generator chamber 3, the manhole is shielded with a shielding body 4 of a shielding device 5. For this purpose, a flange 6 shown on a larger scale (FIG. 3) and FIG. 6 is fastened by means of screws 7 protruding from the front of the manhole projection. A kind of bayonet connection is indeed possible in a simple and quick manner via the step-shaped elongated holes 8.

Eine am Flansch 6 befestigte Stange 9 kragt senkrecht vom Flansch aus und erstreckt sich somit parallel zur Achse 10 des Mannloches 2. Ein in den Fig. 3, 4 und 5 größer dargestelltes büchsenförmig ausgebildetes Verbindungsstück 11 übergreift die Stange 9. An seiner dem Abschirmkörper 4 zugeordneten Seite ist das Verbindungsstück mit einer Schwalbenschwanzführung 35 versehen, die in ein entsprechendes Gegenstück des Abschirmkörpers 4 eingreift und somit eine lösbare Verbindung zwischen Verbindungsstück und Abschirmkörper herstellt. Eine Feststellschraube 15 sichert die Position der Schwalbenschwanzführung. Ein die Schwalbenschwanzführung des Verbindungsstückes 11 tragender Teil 12 ist mit Stiften 13 justierbar und mit Schrauben 14 am Verbindungsstück 11 befestigt. Damit erfolgt ein Ausrichten zwischen der vorzugsweise rohrförmig ausgebildten Stange 9 und dem Abschirmkörper 4.A rod 9 fastened to the flange 6 protrudes perpendicularly from the flange and thus extends parallel to the axis 10 of the manhole 2. A sleeve-shaped connecting piece 11 shown larger in FIGS. 3, 4 and 5 overlaps the rod 9. At its shielding body 4 on the associated side, the connecting piece is provided with a dovetail guide 35 which engages in a corresponding counterpart of the shielding body 4 and thus produces a releasable connection between the connecting piece and the shielding body. A locking screw 15 secures the position of the dovetail guide. A part 12 carrying the dovetail guide of the connecting piece 11 is adjustable with pins 13 and fastened to the connecting piece 11 with screws 14. This results in an alignment between the preferably tubular rod 9 and the shielding body 4.

Zwei diametral gegenüberliegende Längsnuten 16 beginnen gemäß Fig. 4 an dem dem Flansch zugewandten Stangenende und gehen dann in einen wendelförmigen Verlauf über. Die Längsnuten 16 bilden zusammen mit den wendelförmigen Nuten 17 eine Führungsnut 18 in die je ein dem Verbindungssstück 11 zugeordnetes Führungsstück 19 (siehe auch Fig. 5) mit seinem nasenförmigen Vorsprung 34 eingreift. Dem Verbindungsstück 11 ist eine gegenüber der Stange 9 wirkende Feststellschraube 27 zugeordnet.According to FIG. 4, two diametrically opposed longitudinal grooves 16 begin at the rod end facing the flange and then merge into a helical course. The longitudinal grooves 16 together with the helical grooves 17 form a guide groove 18 into which a guide piece 19 assigned to the connecting piece 11 (see also FIG. 5) engages with its nose-shaped projection 34. The connecting piece 11 is assigned a locking screw 27 which acts in relation to the rod 9.

In der Fig. 1 ist der Abschirmkörper 4 in einer Position vor dem Mannloch 2 gezeigt, während in der Fig. 2 der Abschirmkörper in das Mannloch eingeführt ist. Zur Erleichterung des über die Handgriffe 21 (Fig. 3) bewegbaren Abschirmkörper 4 wird er in seine eingefahrene Position über eine Einlaßöffnung 22 mit Deionat gefüllt und vor dem Entfernen aus der Position im Mannloch über ein Auslaßöffnung 23 geleert. Der leichten Bewegbarkeit im Mannloch dienen in der Fig. 3 erkennbare Kugelrollen 24, die umfangsseitig im Abschirmkörper 4 eingelassen sind. Der Abschirmkörper 4 nach der Fig. 1 ist von einer Entlüftungsleitung 25 durchsetzt, um die Ventilation der Dampferzeugerkammer 3 zu gewährleisten. Eine Aussparung 26 am Abschirmkörper 4 nach der Fig. 2 ist zur Durchführung von nicht dargestellten Ver- und Entsorgungsleitungen für ebenfalls nicht dargestellte Inspektions- und Reparaturgeräte vorgesehen.1 shows the shielding body 4 in a position in front of the manhole 2, while in FIG. 2 the shielding body is inserted into the manhole. In order to facilitate the shielding body 4, which can be moved via the handles 21 (FIG. 3), it is filled into its retracted position with deionized water via an inlet opening 22 and emptied via an outlet opening 23 before being removed from the position in the manhole. Ball rollers 24 which can be seen in FIG. 3 and which are embedded in the shielding body 4 on the circumferential side serve for easy mobility in the manhole. The shielding body 4 according to FIG. 1 is penetrated by a ventilation line 25 in order to ensure the ventilation of the steam generator chamber 3. A recess 26 on the shielding body 4 according to FIG. 2 is provided for the implementation of supply and disposal lines (not shown) for inspection and repair devices (also not shown).

Die in der Fig. 4 in einem größeren Maßstab dargestellte Ankoppelung des Abschirmkörpers 4 zur Durchführung einer in der Fig. 6 angedeuteten Schwenkbewegung um die Stange 9 zeigt die Feststellschraube 27 des Verbindungsstückes 11, die der Arretierung des Verbindungsstückes nach erfolgter Schwenkbewegung des vom Verbindungsstück getragenen Abschirmkörpers 4 dient. In der Fig. 4a ist der Abschirmkörper 4 in seiner in das Mannloch eingefahrenen Position gezeigt. Ein am Flansch 6 befestigter Halter 28 für eine Stellschraube 29 bildet die zusammen mit einem dem Abschirmkörper 4 zugeordneten Ring 30 eine den Abschirmkörper in seiner im Mannloch eingefahrenen Position sichernde Feststellvorrichtung 31. Dabei ist die Feststellschraube 29 des Ringes 30 arretiert. Zur Stabilisierung der Stange 9 dient eine Lasche 32, die an dem Flansch 6 befestigt ist und ein mit dem freien Ende der Stange 9 verbundenes Halteelement 33 trägt (Fig. 1).The coupling of the shielding body 4 shown in FIG. 4 on a larger scale for carrying out a pivoting movement indicated in FIG. 6 about the rod 9 shows the locking screw 27 of the connecting piece 11, which locks the connecting piece after the pivoting movement of the shielding body carried by the connecting piece 4 serves. 4a, the shielding body 4 is retracted into the manhole Position shown. A holder 28 for a set screw 29 fastened to the flange 6 forms, together with a ring 30 assigned to the shielding body 4, a locking device 31 securing the shielding body in its position retracted into the manhole. The locking screw 29 of the ring 30 is locked. A tab 32 is used to stabilize the rod 9, which is fastened to the flange 6 and carries a holding element 33 connected to the free end of the rod 9 (FIG. 1).

In der Fig. 6, die eine Ansicht in Pfeilrichtung III der Fig. 1 in einem von der Fig. 3 abweichender Maßstab zeigt, ist in strichpunktierten Linien der Abschirmkörper 4 in seiner von der Öffnung 2 weggeschwenkten Position dargestellt.In FIG. 6, which shows a view in the direction of arrow III of FIG. 1 on a scale that differs from FIG. 3, the shielding body 4 is shown in dash-dotted lines in its position pivoted away from the opening 2.

Claims (9)

Abschirmeinrichtung, deren Abschirmkörper (4) in eine Öffnung (2) eines Behälters (1) einer kerntechnischen Anlage einführbar ist, dadurch gekennzeichnet, daß die Abschirmeinrichtung einen am Behälter (1) befestigten, den Öffnungsquerschnitt des Behälters freilassenden Flansch (6) aufweist, daß der Flansch eine parallel zur Achse (10) der Öffnung (2) auskragende Stange (9) trägt, daß zwischen der Stange und dem Abschirmkörper ein Verbindungsstück (11) angeordnet ist, und daß der Abschirmkörper achsparallel zur oder bogenförmig um die Stange bewegbar ist.Shielding device, the shielding body (4) of which can be inserted into an opening (2) of a container (1) of a nuclear installation, characterized in that the shielding device has a flange (6) attached to the container (1) that leaves the opening cross-section of the container free the flange carries a rod (9) projecting parallel to the axis (10) of the opening (2), that a connecting piece (11) is arranged between the rod and the shielding body, and that the shielding body can be moved axially parallel to or in an arc shape around the rod. Abschirmeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Stange (9) von ihrer dem Flansch (6) zugewandten Seite ausgehend mit wenigstens einer Führungsnut (18) versehen ist, die an ihrem dem Flansch (6) abgewandten Ende wendelartig ausgebildet ist und daß ein die Stange übergreifender Bereich des Verbindungsstückes (11) einen entlang der Führungsnut (18) verfahrbares Führungsstück (19) aufweist.Shielding device according to claim 1, characterized in that the rod (9), starting from its side facing the flange (6), is provided with at least one guide groove (18) which is helical at its end facing away from the flange (6) and that a the area of the connecting piece (11) spanning the rod has a guide piece (19) which can be moved along the guide groove (18). Abschirmeinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Abschirmkörper (4) umfangsseitig mit Kugelrollen (24) ausgestattet ist, die zur Führung entlang der Öffnung (2) dienen.Shielding device according to claim 1 or 2, characterized in that the shielding body (4) is provided on the circumference with ball rollers (24) which serve to guide along the opening (2). Abschirmeinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Verbindungsstück (11) über eine parallel zur Stangenachse erstreckte Schwalben schwanzführung mit dem Behälter (1) lösbar verbunden ist, wobei die Schwalbenschwanzführung in einer vorgebbaren Position arretierbar ist.Shielding device according to claim 1 or 2, characterized in that the connecting piece (11) via a swallow extending parallel to the rod axis Tail guide is releasably connected to the container (1), wherein the dovetail guide can be locked in a predeterminable position. Abschirmeinrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß dem Flansch (6) eine gegenüber dem Abschirmkörper (4) wirkende Feststellvorrichtung (31) zugeordnet ist.Shielding device according to one of claims 1 to 4, characterized in that a locking device (31) acting with respect to the shielding body (4) is assigned to the flange (6). Abschirmeinrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Verbindungsstück (11) eine an der Stange (9) anlegbare Feststellschraube (27) aufweist.Shielding device according to one of Claims 1 to 5, characterized in that the connecting piece (11) has a locking screw (27) which can be placed on the rod (9). Abschirmeinrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß dem Abschirmkörper (4) Einlaß- (22) und Auslaßöffnungen (23) für Deionat zugeordnet sind.Shielding device according to one of claims 1 to 6, characterized in that inlet (22) and outlet openings (23) for deionized water are assigned to the shielding body (4). Abschirmeinrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Abschirmkörper (4) von Ver-, Entsorgungs- und Entlüftungsleitungen durchsetzt ist.Shielding device according to one of claims 1 to 7, characterized in that the shielding body (4) is penetrated by supply, disposal and ventilation lines. Abschirmeinrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß am Flansch (6) eine Lasche (32) befestigt ist, die ein mit der Stange (9) verbundenes Halteelement (33) trägt.Shielding device according to one of claims 1 to 8, characterized in that a tab (32) is attached to the flange (6) and carries a holding element (33) connected to the rod (9).
EP94111034A 1993-07-21 1994-07-15 Shielding device for a vessel in a nuclear installation Expired - Lifetime EP0635847B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9310896U 1993-07-21
DE9310896U DE9310896U1 (en) 1993-07-21 1993-07-21 Shielding device for a container of a nuclear plant

Publications (2)

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EP0635847A1 true EP0635847A1 (en) 1995-01-25
EP0635847B1 EP0635847B1 (en) 1996-11-06

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EP94111034A Expired - Lifetime EP0635847B1 (en) 1993-07-21 1994-07-15 Shielding device for a vessel in a nuclear installation

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EP (1) EP0635847B1 (en)
DE (2) DE9310896U1 (en)
ES (1) ES2096381T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103606388A (en) * 2013-12-02 2014-02-26 中国科学院高能物理研究所 Quick installation structure and method of radiation-proof shielding through-wall pipe insertion piece

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2420828A1 (en) * 1978-03-23 1979-10-19 Cockerill DEVICE FOR REMOVING AND REASSEMBLING MANHOLE COVERS ON A PRESSURE VESSEL
EP0389186A2 (en) * 1989-03-20 1990-09-26 Westinghouse Electric Corporation Cover for protecting an operator from radiation emission

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2420828A1 (en) * 1978-03-23 1979-10-19 Cockerill DEVICE FOR REMOVING AND REASSEMBLING MANHOLE COVERS ON A PRESSURE VESSEL
EP0389186A2 (en) * 1989-03-20 1990-09-26 Westinghouse Electric Corporation Cover for protecting an operator from radiation emission

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103606388A (en) * 2013-12-02 2014-02-26 中国科学院高能物理研究所 Quick installation structure and method of radiation-proof shielding through-wall pipe insertion piece
CN103606388B (en) * 2013-12-02 2016-01-27 中国科学院高能物理研究所 A kind of quick fixation structure of radiation-proof shield through-wall pipe insert and fast-assembling method

Also Published As

Publication number Publication date
EP0635847B1 (en) 1996-11-06
DE9310896U1 (en) 1993-10-28
ES2096381T3 (en) 1997-03-01
DE59400987D1 (en) 1996-12-12

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