Rotary union for use with ultrasonic thickness measuring probe
Abstract
A rotary union for rotatably supporting an ultrasonic probe operable to nondestructively measure the thickness of steam generator tubes to determine the amount of corrosion experienced by the tubes includes a stationary body having a bore therethrough and an outlet drain, and a fitting rotatably mounted within the upper end of the body. The fitting has a bore aligned with the bore of the body. An electrical cable positioned within a water supply tube in an annular arrangement passes through the bore of the body and the bore of the fitting. This annular arrangement, in turn, is positioned within a connector element which extends outwardly from the fitting bore and is connected to the ultrasonic probe. An elastomeric lower bushing seals the annular arrangement to the lower end of the rotary union body and an elastomeric upper bushing seals the connector element to the fitting to permit the connector element and the ultrasonic probe connected thereto to rotate with the fitting relative to the body. The lower and upper bushings permit water to be passed through the annular arrangement and into the ultrasonic probe and thereafter discharged between the annular arrangement and the connector element to the outlet drain ofmore »
- Inventors:
-
- Schenectady, NY
- Issue Date:
- Research Org.:
- Knolls Atomic Power Laboratory (KAPL), Niskayuna, NY (United States)
- OSTI Identifier:
- 868462
- Patent Number(s):
- 5146786
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- AC12-76SN00052
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- rotary; union; ultrasonic; thickness; measuring; probe; rotatably; supporting; operable; nondestructively; measure; steam; generator; tubes; determine; amount; corrosion; experienced; stationary; bore; therethrough; outlet; drain; fitting; mounted; upper; aligned; electrical; cable; positioned; water; supply; tube; annular; arrangement; passes; connector; element; extends; outwardly; connected; elastomeric; bushing; seals; permit; thereto; rotate; relative; bushings; passed; thereafter; discharged; rotatably supporting; supply tube; connected thereto; rotary union; measuring probe; bore therethrough; rotatably mounted; steam generator; water supply; electrical cable; ultrasonic probe; ultrasonic thickness; extends outwardly; thickness measuring; extends outward; generator tube; probe connected; corrosion experienced; /73/
Citation Formats
Nachbar, Henry D. Rotary union for use with ultrasonic thickness measuring probe. United States: N. p., 1992.
Web.
Nachbar, Henry D. Rotary union for use with ultrasonic thickness measuring probe. United States.
Nachbar, Henry D. Wed .
"Rotary union for use with ultrasonic thickness measuring probe". United States. https://www.osti.gov/servlets/purl/868462.
@article{osti_868462,
title = {Rotary union for use with ultrasonic thickness measuring probe},
author = {Nachbar, Henry D},
abstractNote = {A rotary union for rotatably supporting an ultrasonic probe operable to nondestructively measure the thickness of steam generator tubes to determine the amount of corrosion experienced by the tubes includes a stationary body having a bore therethrough and an outlet drain, and a fitting rotatably mounted within the upper end of the body. The fitting has a bore aligned with the bore of the body. An electrical cable positioned within a water supply tube in an annular arrangement passes through the bore of the body and the bore of the fitting. This annular arrangement, in turn, is positioned within a connector element which extends outwardly from the fitting bore and is connected to the ultrasonic probe. An elastomeric lower bushing seals the annular arrangement to the lower end of the rotary union body and an elastomeric upper bushing seals the connector element to the fitting to permit the connector element and the ultrasonic probe connected thereto to rotate with the fitting relative to the body. The lower and upper bushings permit water to be passed through the annular arrangement and into the ultrasonic probe and thereafter discharged between the annular arrangement and the connector element to the outlet drain of the rotary union body.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1992},
month = {Wed Jan 01 00:00:00 EST 1992}
}