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Apparatus and method for inspecting areas surrounding nuclear boiling water reactor core and annulus regions

  • US 20070146480A1
  • Filed: 12/22/2005
  • Published: 06/28/2007
  • Est. Priority Date: 12/22/2005
  • Status: Abandoned Application
First Claim
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1. An apparatus for inspecting the core and annulus regions of nuclear boiling water reactors, the apparatus comprising:

  • a carriage assembly containing electrical control wiring;

    a propulsion system for propelling the apparatus, the propulsion system being mounted on the underside of the carriage assembly, wherein the propulsion system comprises a spring-loaded drive assembly having a plurality of rollers adapted to rest on top of the reactor steam dam, a pinch-roller assembly having a spring-clamp tensioning a plurality of pinch-rollers positioned in a plane perpendicular to that of the plurality of rollers adapted to rest on top of the reactor steam dam, a drive mechanism for forward and reverse movement of the apparatus, wherein the drive mechanism powers a plurality of driver rollers positioned opposite to the pinch-rollers;

    at least one turret-type assembly located on the carriage assembly for mounting and pivoting at least one extendable telescoping mast assembly, the at least one mast assembly being capable of extending a predetermined distance above and below the carriage assembly, the at least one mast assembly supporting at least one piece of inspection and maintenance equipment; and

    a control mechanism for controlling the movement, inspection and maintenance attributes of the apparatus, the control mechanism being capable of being operated from a location remote from the apparatus.

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