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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

Inactive Publication Date: 2012-04-18
WESTINGHOUSE ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Furthermore, existing inspection equipment is bulky and the flexible shaft used to push the inspection probe through the length of the pipe becomes very dirty
In addition, the shaft is subject to bending, which causes difficulties during inspection operations

Method used

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  • Tetherless tube inspection system
  • Tetherless tube inspection system
  • Tetherless tube inspection system

Examples

Experimental program
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Effect test

Embodiment Construction

[0023] With reference to the accompanying drawings, figure 1 Shown is a steam generator 10 which utilizes a plurality of U-shaped tubes forming a tube bundle 12 to provide the heating surface required for heat transfer from a primary fluid traveling within the tubes for vaporizing or vaporizing the surrounding tube exterior. secondary fluid. The steam generator 10 comprises a vessel having a vertically oriented tubular casing with a reduced diameter lower portion 14, a conical central portion 20 and an enlarged diameter upper portion 15 and a generally hemispherical shape surrounding the lower end. The channel head 18 of the upper part is covered on top with a top casing or dish-shaped head 16 surrounding the upper end. The tube sheet 22 is attached to the channel head 18 and has a number of holes provided therein to receive the ends of the U-shaped tubes. A partition plate 26 is arranged centrally within the channel head 18 to divide the channel head into two chambers 28 an...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/265F16L55/38F16L55/46F22B37/00G01M3/00G01M3/24G01N21/954G01N27/90G21C17/013G21C17/017F16L55/32
CPCG21C17/017F22B37/003G01N29/265G01N27/902G21D1/006Y02E30/40Y02E30/30Y02E30/00F16L55/48G01N27/82G01N29/11
Inventor L·培特罗斯基J·L·博因顿K·B·罗耶德
Owner WESTINGHOUSE ELECTRIC CORP
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