Apparatus for the ultrasonic examination of shroud hold down bolts

Patent · Tue Apr 04 00:00:00 EDT 1989

OSTI ID:6119741

Richardson, D L; Clark, J P; Smith, T; Perry, R W

A process of testing hold down bolts depending from the sides of a steam separator within a nuclear reactor is described the process comprising the steps of: maintaining the steam separator under water; moving the bolts to unlatch the bolts from brackets on the shroud adjacent the steam separator; providing a shoe having a piezoelectric device mounted to the bottom of the shoe and exposed upwardly; providing a remotely actuated clamp attached to the shoe overlying the piezoelectric device; providing a mount to the shoe for manipulating the shoe underwater in a depending relationship at the bottom end of a pole; providing a pole and attaching the pole to the shoe; manipulating the shoe to the bottom of the bolt; and clamping the shoe to the bolt; and testing the bolt with the piezoelectric device.

• Assignee: General Electric Co., San Jose, CA
• Patent Number(s): US 4818470
• Application Number: TRN: 89-017934
• OSTI ID: 6119741
• Resource Relation: Patent File Date: Filed date 31 Aug 1987
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
BOLTED JOINTS
ULTRASONIC TESTING
SHROUDS
INSTALLATION
OPERATION
PIEZOELECTRICITY
STEAM SEPARATORS
STEAM SYSTEMS
ACOUSTIC TESTING
COOLING SYSTEMS
ELECTRICITY
ENERGY SYSTEMS
JOINTS
MATERIALS TESTING
NONDESTRUCTIVE TESTING
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
SEPARATION EQUIPMENT
TESTING
VAPOR SEPARATORS
220200* - Nuclear Reactor Technology- Components & Accessories