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Troubleshooting Rotating Machinery by Robert X. Perez and Andrew P. Conkey
Process machines are critical to the profitability of processes. Safe, efficient and reliable machines are required to maintain dependable manufacturing processes that can create saleable, on-spec product on time, and at the desired production rate. As the wards of process machinery, we wish to keep our equipment in serviceable condition.
One of the most challenging aspects of a machinery professional or operator’s job is deciding whether an operating machine should be shut down due to a perceived problem or be allowed to keep operating. If he or she wrongly recommends a repair be conducted, the remaining useful machine life is wasted, but if he or she is right, they can save the organization from severe consequences, such as product releases, fires, costly secondary machine damage, etc. This economic balancing act is at the heart of all machinery assessments.
Troubleshooting is part science and part art. Simple troubleshooting tables or decision trees are rarely effective in solving complex, real-world machine problems. For this reason, the authors want to offer a novel way to attack machinery issues that can adversely affect the reliability and efficiency of your plant processes. The methodology presented in this book is not a rigid “cook book” approach but rather a flexible and dynamic process aimed at exploring process plant machines holistically, in order uncover the true nature the problem at hand.
The time period course of equipment shall be used to discuss with rotating equipment generally encountered in processing vegetation, similar to centrifugal pumps and compressors, reciprocating pumps and compressors, followers, steam generators, and electrical motors. Our fi rst e-book on this collection, Is My Machine OK? offers, largely, with assessing course of equipment within the fi eld. Th is information takes the evaluation course of to the subsequent degree by serving to operators, mechanics, managers, and equipment professionals higher troubleshoot course of equipment in-situ, i.e., within the field.
To achieve success, the troubleshooter have to be persistent, open-minded and disciplined. As soon as fi eld knowledge is collected, an unbiased, logical method to the fi nding is required to hone in on essentially the most possible supply of an noticed symptom (or signs). With no complete and logical evaluation of the fi ndings, the investigator is just guessing, which wastes invaluable time and assets.
We hope these studying and utilizing this information will absolutely make the most of the concepts and ideas offered to attenuate upkeep value and threat ranges related to equipment possession. Course of machines are essential to the profi tability of processes. Protected, effi cient and dependable machines are required to keep up reliable manufacturing processes that may create saleable, on-spec product on time, and on the desired manufacturing charge.
Because the wards of course of equipment, we want to maintain our gear in serviceable situation. One of the difficult facets of a equipment skilled or operator’s job is deciding whether or not an working machine needs to be shut down because of a perceived drawback or be allowed to maintain working and at what degree of operation. If she or he wrongly recommends a restore be carried out, the remaining helpful machine life is wasted, but when she or he is correct, they will save the group from extreme penalties, similar to product releases, fi res, expensive secondary machine injury, and so on. Th is financial balancing act is on the coronary heart of all equipment assessments.
The main function of this information is to assist operators and equipment professionals troubleshoot machines which are in a course of service and working at design course of circumstances. Th e reader might ask: What’s the diff erence between fi eld troubleshooting and different evaluation strategies similar to a root trigger evaluation, failure evaluation, and a root trigger failure evaluation?
Troubleshooting rotating machinery: including centrifugal pumps and compressors, reciprocating pumps and compressors, fans, steam turbines, electric motors, and more
Author(s): Conkey, Andrew P.; Perez, Robert X
Publisher: Wiley-Scrivener, Year: 2016
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[PDF] Troubleshooting Rotating Machinery by Robert X. Perez and Andrew P. Conkey Table Of Contents
Troubleshooting for fun and profit
An insight in design : machines and their components serve a function
Machinery design issues and failure modes
Machinery in process services : the big picture
Causes versus symptoms
Approach field troubleshooting like a reputable news reporter
The ‘what’ questions
Who knows the most about the problem?
When do the symptoms show up?
Where do the symptoms show up?
Why is the problem occurring?
Analyze, test, act, and confirm (repeat as needed)
The ‘hourglass’ approach to troubleshooting
Applying the 5Qs to rotordynamic investigations
Managing critical machinery vibration data