Is My Machine OK?
A Field Guide to Assessing Process Machinery
Robert X. Perez Andrew P. Conkey
English and Metric Units Used Throughout
Industrial Press Inc.
New York
A catalog record for this book is available from the Library of Congress
INDUSTRIAL PRESS, INC. 989 Avenue of the Americas New York, NY 10018
Sponsoring Editor: John Carleo
Copyeditor: Robert Weinstein
Interior Text and Cover Design: Janet Romano
Copyright © 2012 by Industrial Press Inc., New York.
Printed in the United States of America.
All rights reserved.
This book, or any parts thereof, may not be reproduced,
stored in a retrieval system, or transmitted in any form
without the permission of the publisher.
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The authors wish to dedicate this book to their wives for all their help and encouragement.
Bill Stark, P.E., Principal, Bath Engineering Mr. Stark is a licensed Professional Engineer in Texas, with over 15 years of project engineering and management in petrochemical plant design and construction. He earned degrees in Electrical Engineering and Computer Engineering from the University of Missouri at Columbia and an MBA from Texas A&M University at Corpus Christi.
Julien Le Bleu, Jr., Principal Rotating Equipment Engineer, Retired Mr. Le Bleu has more than 35 years of experience with critical industrial machinery, including 25 years as the Principal Rotating Equipment Engineer for Lyondell Chemicals in Lake Charles, Louisiana. He earned a B.S. degree from the University of Florida. Mr. Le Bleu is currently teaching machinery best practices to operators and maintenance personnel.
John W. Davis, President and Founder of WFM Associates Mr. Davis is an established author and recognized authority on Lean Manufacturing. With an extensive background in products ranging from air conditioning and fractional H.P. motors to jet engines, helicopters and elevators, Davis has a broad range of experience in manufacturing and has consulted with numerous leading firms including Brunswick Corporation, Crane Pumps, CertainTeed Corporation, Rowe Manufacturing, JTB Furniture, and Defiance Metal Products.
Table of Contents
Copyright
Dedication
Contributors
Acknowledgments
Chapter 1: Introduction
Chapter 2: A Brief Introduction to Machinery Monitoring
Chapter 3: General Machinery Monitoring Guidance
When Should a Machine Be Considered Critical Enough to Justify Continuous Monitoring?
Machinery Monitoring Recommendations Based on Criticality
Simplified Method of Economic Justification
Chapter 4: Machinery Assessment Steps
What machine information do I need before getting started?
What analysis equipment do I need?
The Potential to Failure Time Interval
Chapter 5: Machinery Data Analysis
Combination Trends
Some Rules of Thumb
Chapter 6: How to Audit Operating Machinery
Field Audit Form
Chapter 7: Risk Ranking Machinery Issues
Recommendations and Risk Ratings
Chapter 8: How to Assess Centrifugal Pump Performance
Why Use Centrifugal Pumps?
Head Versus Pressure
Centrifugal Pump Performance
Summary
Chapter 9: How to Conduct a Steam Turbine Field Inspection
Steam Turbine Types
What is the Steam Turbine Speed Telling You?
Assessing Steam Turbine Vibrations
Steam Turbine Temperature Assessment
Common Governor Control Problems