Tetherless tube inspection system

A non-destructive inspection and drive system technology, applied to pipe components, pipes/pipe joints/pipe fittings, and detecting the presence of fluid at leakage points, etc., can solve problems such as dirty flexible shafts, large inspection equipment, and difficult inspection operations
CN102422155AInactive Publication Date: 2012-04-18WESTINGHOUSE ELECTRIC CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WESTINGHOUSE ELECTRIC CORP
Publication Date
2012-04-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

Apparatus and a method to inspect tubing by means of a free flying, autonomous inspection head that is not attached by wires to external control and data acquisition equipment. The inspection head travels through the tube with an attached module that integrates all the necessary support for the electronic and mechanical control of a nondestructive sensor within the inspection head.
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Description

[0001] Cross References to Related Applications

[0002] This application claims priority to Provisional Application Serial No. 61 / 178,190, filed May 14, 2009. technical field

[0003] The present invention relates generally to non-destructive inspection of heat exchanger tubing, and more particularly to a wireless self-contained inspection system capable of passing through small pipe diameters. Background technique

[0004] Steam generators used in nuclear power plants are very large heat exchangers where heat is transferred from the primary fluid heated by the nuclear reactor to the secondary fluid, which is converted to steam and used to drive a turbine generator. The steam generator is housed in a tall, substantially cylindrical steel casing. A number of U-shaped heat exchanger tubes are enclosed in the shell and have their ends inserted into holes formed in a horizontal tube sheet or plate near the bottom of the steel shell. These tubes are used to transport primary f...

Claims

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