DE9415987U1 - Shielded, swiveling camera manipulator with lighting, for inspection in the core area of boiling and pressurized water reactors - Google Patents

Shielded, swiveling camera manipulator with lighting, for inspection in the core area of boiling and pressurized water reactors

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Publication number
DE9415987U1
DE9415987U1 DE9415987U DE9415987U DE9415987U1 DE 9415987 U1 DE9415987 U1 DE 9415987U1 DE 9415987 U DE9415987 U DE 9415987U DE 9415987 U DE9415987 U DE 9415987U DE 9415987 U1 DE9415987 U1 DE 9415987U1
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Germany
Prior art keywords
pos
camera
shielded
inspection
boiling
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Expired - Lifetime
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DE9415987U
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German (de)
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Priority to DE9415987U priority Critical patent/DE9415987U1/en
Publication of DE9415987U1 publication Critical patent/DE9415987U1/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J19/00Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
    • B25J19/02Sensing devices
    • B25J19/021Optical sensing devices
    • B25J19/023Optical sensing devices including video camera means
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21CNUCLEAR REACTORS
    • G21C17/00Monitoring; Testing ; Maintaining
    • G21C17/003Remote inspection of vessels, e.g. pressure vessels
    • 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Robotics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Examining Or Testing Airtightness (AREA)

Description

•• ** HerbertHerbert WenzelWenceslas * #* # • · ·· ·
# ·# ·
·* ··* ·
• · ·· ·
• *• * • ··············

- Beschreibung -- Description -

Titel: Abgeschirmter, schwenkbarer Kameramanipulator mit Beleuchtung, zur Inspektion im Kernmantelbereich von Siede- und Druckwasserreaktoren. Title: Shielded, pivoting camera manipulator with lighting for inspection in the core shroud area of boiling and pressurized water reactors.

Stand derState of

Technik: Es ist bekannt, daß ein einwandfreier Zustand von Material und Schweißnähten des Kernmantels in Siede- und Druckwasserreaktoren nachgewiesen werden muß. Die bisherigen Sichtprüfungen erfolgten bei entladenem Kern aus folgendem Grund: Technology: It is known that the perfect condition of the material and welds of the core shroud in boiling and pressurized water reactors must be demonstrated. The previous visual inspections were carried out with the core unloaded for the following reason:

Die eingesetzten Unterwasserkameras halten die hohe Strahlung der Brennelemente bei beladenem Kern nicht aus.The underwater cameras used cannot withstand the high radiation from the fuel elements when the core is loaded.

Fundstellen:Locations:

Der Anmelder selbst ist in Kernkraftwerken als Schichtleiter in Revisionen am Reaktordruckbehälter bei dem Brennelementwechsel beschäftigt und kennt somit die Arbeitsweise bei wiederkehrenden Prüfungen.The applicant himself is employed in nuclear power plants as a shift supervisor in inspections of the reactor pressure vessel during fuel element replacement and is therefore familiar with the working methods of recurring inspections.

Problem:Problem:

Lösung:Solution:

Mit der im Schutzanspruch angegebenen Erfindung liegt das Problem zugrunde, eine einwandfreie Sichtprüfung bei beladenem Kern durchzuführen.The invention specified in the protection claim is based on the problem of carrying out a flawless visual inspection with a loaded core.

Der Kameramanipulator ist so konstruiert, daß er mit dem Arbeitsgestänge, montiert an der Befestigungsplatte ( Fig.1 Pos.1 ) durch das obere Kerngitter (Siedewasserreaktor) in eine freigemachte Kernzelle hängend am Hilfshub der BE-Wechselmaschine geführt wird. Die axiale Drehbewegung wird mit dem Arbeitsgestänge durchgeführt.The camera manipulator is designed in such a way that it is guided with the working rod, mounted on the fastening plate (Fig.1 Pos.1) through the upper core grid (boiling water reactor) into a cleared core cell hanging on the auxiliary lift of the fuel exchange machine. The axial rotary movement is carried out with the working rod.

Herbert WenzelHerbert Wenzel

- Beschreibung -- Description -

Lösung:Solution:

Die Höhenverstellung der Unterwasserkamera ( Fig.1 Pos.11) wird mit dem Arbeitszylinder C Fig.1 Pos.4 ) mittels der Zahnstange ( Fig.1 Pos.3 ) und dem am Kamerahalter ( Fig.1 Pos.10 ) befestigten Zahnkranz ( Fig.1 Pos.9 ) getätigt. Die Bleiabschirmung < Fig.1 Pos.6 ) hält die von hinten einfallende sehr hohe Strahlung der Brennelemente auf die Unterwasserkamera ab. Die seitliche Streustrahlung auf die UW-Kamera wird durch die Bleiabschirmung im Kamerahalter ( Fig.1 Pos.10 ) abgeschirmt.The height adjustment of the underwater camera (Fig.1 Pos.11) is carried out with the working cylinder C Fig.1 Pos.4) using the rack (Fig.1 Pos.3) and the gear ring (Fig.1 Pos.9) attached to the camera holder (Fig.1 Pos.10). The lead shielding (Fig.1 Pos.6) keeps the very high radiation from the fuel elements falling from behind off the underwater camera. The side scattered radiation on the underwater camera is shielded by the lead shielding in the camera holder (Fig.1 Pos.10).

Auf der Stirnseite des Kamerahalters ist ein Bleiglas angebaut, das die Frontstrahlung auf die UW-Kamera abschirmt. Der Einfädelkonus C Fig.1 Pos.8 ) dient zum leichteren einfädeln in das obere Kerngitter. Weiterhin ist der Kameramanipulator mit einem Unterwasserscheinwerfer ( Fig.1 Pos.7 ) ausgestattet der die aufzuzeichnenden Stellen des Kernmantels ausleuchtet.A lead glass is mounted on the front of the camera holder, which shields the front radiation on the underwater camera. The threading cone C (Fig.1 Pos.8) is used to make threading into the upper core grid easier. The camera manipulator is also equipped with an underwater spotlight (Fig.1 Pos.7) which illuminates the areas of the core mantle that are to be recorded.

Herbert WenzelHerbert Wenzel

- Beschreibung -Beschreibung zu Figur 2- Description -Description of Figure 2

Draufsicht Siedewasserreaktor ohne Maßstab.Top view of boiling water reactor, not scaled.

Position 1: ReaktordruckbehaLterPosition 1: Reactor pressure vessel

Position 2: Zwangsumwälzpumpe.Position 2: forced circulation pump.

Position 3: KernmantelPosition 3: Core mantle

Position 4: Kameramanipulator in freier KernzellePosition 4: Camera manipulator in free core cell

Position 5: Mit X gezeichnete freie Kernzellen.Position 5: Free nuclear cells marked with X.

Position 6: Vier mit + gezeichnete beladene Kernzelle.Position 6: Four loaded core cells marked with +.

Beschreibung zu Figur 3Description of Figure 3

Siedewasserreaktor im Schnitt ohne Maßstab Position 1: Brennelementwechselmaschine Position 2: Reaktorgrube Position 3: Flutkompensator Position 4: Reaktordruckbehälter Position 5: Arbeitsgestänge Position 6: Oberes Kerngitter Position 7: Beladener Kern mit Brennelementen Position 8: ZwangsumwälzpumpenBoiling water reactor in section, not to scale Position 1: Fuel element changing machine Position 2: Reactor pit Position 3: Flood compensator Position 4: Reactor pressure vessel Position 5: Working rods Position 6: Upper core grid Position 7: Loaded core with fuel elements Position 8: Forced circulation pumps

Position 9: Kameramanipulator mit ausgeschwenkter Kamera bei der inneren Schweißnahtinspektion vom Kernmantel.Position 9: Camera manipulator with swiveled camera during the internal weld seam inspection of the core shell.

Herbert WenzelHerbert Wenzel

- Beschreibung -- Description -

Beispiel:Example:

Bei den jährlichen Revisionen in Kernkraftwerken ist es erforderlich, Prüfungen an bestimmten Bauteilen durchzuführen und somit einen einwandfreien Nachweis dem TuV und der Behörde zu erbringen. Bei Inspektionen im Bereich von Brennelementen fallen Unterwasserkameras aus, oder sie werden sogar von der hohen Strahlung zerstört. Aus diesem Grund ist bei dem in der Erfindung angegebenen Kameramanipulator eine Bleiabschirmung ( Fig.1 Pos.6 ) und im Kamerahalter C Fig.1 Pos.10 ) angebracht. Zusätzlich dient das Bleiglas vor dem Kameraobjektiv noch als Strahlungsabschirmung. Der Kameramanipulator wird mit dem Arbeitsgestänge vei&mdash; schraubt ( Fig.3 Pos.5/9 ) und durch das obere Kerngitter < Fig.3 Pos.6 ) in entladene Kernzellen C Fig.2 Pos.5 ) eingeführt. Danach wird die Beleuchtung < Fig.1 Pos.7 ) eingeschaltet. Durch beaufschlagung des Arbeitszylinders ( Fig.1 Pos.4 ) mit Druckluft, geregelt über einen Druckminderer, wird die Zahnstange ( Fig.1 Pos.3 ) in Eingriff mit dem Zahnkranz ( Fig.1 Pos.9 ) in Bewegung gesetzt, und somit ein schwenken des Kamerahalters, bis zu 135Grad, ereicht. Die axiale Ausrichtung des Kameramanipulators wird mit dem Arbeitsgestänge durch drehen in die gewünschte Richtung erzielt. Der ganze Ausrichtvorgang wird mit eingeschalteter Unterwasserkamera am Monitor überwacht. Nach dem ausrichten des Kameramanipulators auf die gewünschte Stelle im Kernmantel kann die Inspektion durchgeführt werden und somit ein Nachweis erbracht werden.During the annual inspections in nuclear power plants, it is necessary to carry out tests on certain components and thus provide impeccable proof to the TÜV and the authorities. During inspections in the area of fuel elements, underwater cameras fail or are even destroyed by the high radiation. For this reason, lead shielding ( Fig.1 Pos.6 ) is installed in the camera manipulator specified in the invention and in the camera holder C Fig.1 Pos.10 ). In addition, the lead glass in front of the camera lens also serves as radiation shielding. The camera manipulator is screwed to the working rod ( Fig.3 Pos.5/9 ) and inserted through the upper core grid < Fig.3 Pos.6 ) into discharged core cells C Fig.2 Pos.5 ). The lighting < Fig.1 Pos.7 ) is then switched on. By applying compressed air to the working cylinder (Fig.1 Pos.4), regulated by a pressure reducer, the rack (Fig.1 Pos.3) is set in motion in engagement with the gear ring (Fig.1 Pos.9), thus enabling the camera holder to swivel by up to 135 degrees. The axial alignment of the camera manipulator is achieved with the working rod by turning it in the desired direction. The entire alignment process is monitored on the monitor with the underwater camera switched on. After aligning the camera manipulator to the desired location in the core mantle, the inspection can be carried out and proof can be provided.

Herbert WenzelHerbert Wenzel

- Beschreibung -- Description -

Ereichte Vorteile:Achieved Advantages:

1. Zeit- und Kostenersparnis1. Time and cost savings

Die mit der Erfindung ereichten Vorteile bestehen darin, daß der Kern nicht soweit entladen werden muß, daß nicht abgeschirmte Kameras eingesetzt werden können. Dadurch werden Revisionszeiten verkürzt und somit hohe Kosten eingespart.The advantages achieved with the invention are that the core does not have to be discharged to such an extent that unshielded cameras can be used. This shortens inspection times and thus saves a lot of money.

2. Geringere Strahlenbelastung2. Lower radiation exposure

Dadurch, daß der Kern nicht komplett entladen wird und die Sichtprüfungen durch eine hohe Qualität der Aufzeichnungen schneller durchgeführt werden, ist das Personal einer geringeren Strahlenbelastung, durch verkürzte Zeiten ausgesetzt.Because the core is not completely discharged and the visual inspections are carried out more quickly due to high quality recordings , the personnel are exposed to less radiation due to shorter times.

Claims (1)

Herbert Wenzel - Schutzansprüche -Herbert Wenzel - Protection claims - 1.) Abgeschirmter, schwenkbarer Kameramanipulator mit Beleuchtung, zur Inspektion im Kernmantelbereich von Siede- und Druckwasserreaktoren.1.) Shielded, swiveling camera manipulator with lighting, for inspection in the core shroud area of boiling and pressurized water reactors. Dadurch gekennzeichnet,Characterized, daß der KameramanipuLator mit einem Schutzrohr ( Fig.1 Pos.2 ), einer Befestigungsplatte ( Fig.1 Pos.1 ), einem Einfädelkonus < Fig.1 Pos.8 ),that the camera manipulator is equipped with a protective tube (Fig.1 Pos.2), a mounting plate (Fig.1 Pos.1), a threading cone < Fig.1 Pos.8), einem Arbeitszylinder ( Fig.1 Pos.4 ), einer Zahnstange C Fig.1 Pos.3 ),a working cylinder ( Fig.1 Pos.4 ), a rack C Fig.1 Pos.3 ), zwei Gegenlager ( Fig.1 Pos.5 ),two counter bearings ( Fig.1 Pos.5 ), einer Bleiabschirmung ( Fig.1 Pos.6 ), einer Unterwasserbeleuchtung ( Fig.1 Pos.7 ), einem Zahnkranz < Fig.1 Pos.9 ),a lead shield ( Fig.1 Pos.6 ), an underwater light ( Fig.1 Pos.7 ), a gear ring < Fig.1 Pos.9 ), einem mit Blei abgeschirmten nach oben schwenkbaren Kamerahalter ( Fig.1 Pos.10 ),a lead-shielded camera holder that can be swivelled upwards (Fig.1 Pos.10), einer Strahlenfesten Unterwasserkamera < Fig.1 Pos.11 ) versehen ist.a radiation-resistant underwater camera < Fig.1 Pos.11 ) is provided.
DE9415987U 1994-10-05 1994-10-05 Shielded, swiveling camera manipulator with lighting, for inspection in the core area of boiling and pressurized water reactors Expired - Lifetime DE9415987U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9415987U DE9415987U1 (en) 1994-10-05 1994-10-05 Shielded, swiveling camera manipulator with lighting, for inspection in the core area of boiling and pressurized water reactors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9415987U DE9415987U1 (en) 1994-10-05 1994-10-05 Shielded, swiveling camera manipulator with lighting, for inspection in the core area of boiling and pressurized water reactors

Publications (1)

Publication Number Publication Date
DE9415987U1 true DE9415987U1 (en) 1994-12-22

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3627684A1 (en) * 1985-08-14 1987-02-26 Framatome Sa DEVICE FOR CONTROLLING THE GAME BETWEEN THE PERIPHERY OF THE TOP PLATE OF THE REACTOR CORE AND THE INSIDE SURFACE OF THE CORE SHEATH OF A PRESSURE WATER CORE REACTOR
DE8913402U1 (en) * 1989-11-13 1990-01-04 Siemens AG, 1000 Berlin und 8000 München Test manipulator
WO1993021640A1 (en) * 1992-04-08 1993-10-28 R. Brooks Associates, Inc. Support plate inspection device
WO1993023853A1 (en) * 1992-05-14 1993-11-25 Brooks Support Systems, Inc. Inspection device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3627684A1 (en) * 1985-08-14 1987-02-26 Framatome Sa DEVICE FOR CONTROLLING THE GAME BETWEEN THE PERIPHERY OF THE TOP PLATE OF THE REACTOR CORE AND THE INSIDE SURFACE OF THE CORE SHEATH OF A PRESSURE WATER CORE REACTOR
US4746486A (en) * 1985-08-14 1988-05-24 Framatome Device for checking clearance between the periphery of the upper core plate and the inner surface of the core enclosure of a pressurized water nuclear reactor
DE8913402U1 (en) * 1989-11-13 1990-01-04 Siemens AG, 1000 Berlin und 8000 München Test manipulator
WO1993021640A1 (en) * 1992-04-08 1993-10-28 R. Brooks Associates, Inc. Support plate inspection device
US5265129A (en) * 1992-04-08 1993-11-23 R. Brooks Associates, Inc. Support plate inspection device
WO1993023853A1 (en) * 1992-05-14 1993-11-25 Brooks Support Systems, Inc. Inspection device
US5305356A (en) * 1992-05-14 1994-04-19 Brooks Support Systems, Inc. Inspection device
US5305356B1 (en) * 1992-05-14 1998-09-01 Brooks Support Systems Inc Inspection device

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