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Upthrust Problems On Multistage Vertical Turbine Pumps
(Texas A&M University. Turbomachinery Laboratories, 2005)
Vertical turbine pumps are designed to operate with the pump shafts in tension (downthrust). Most pump and motor manufacturers caution users to not operate the vertical turbine pumps at conditions that result in “upthrust.” ...
Active Lift Seal Technology Impacted On Water Injection Services
(Texas A&M University. Turbomachinery Laboratories, 2005)
Increasing environmental awareness and the ongoing need for improved reliability has seen an increase in the number of water reinjection installations, both onshore and offshore, and in particular in recent years, the use ...
Basic Pump Rotordynamic Analysis And Specifications
(Texas A&M University. Turbomachinery Laboratories, 2005)
Double Gas Seal With Coplanar Coaxial Rayleigh Pad Faces For Pump Sealing Applications
(Texas A&M University. Turbomachinery Laboratories, 1999)
There has been a rapid growth in the application of noncontacting double seals with a gas buffer fluid to pump sealing. The advantages of such a sealing arrangement are:
• There is no liquid buffer fluid to maintain or ...
Finding And Eliminating Chronic Pump Failures
(Texas A&M University. Turbomachinery Laboratories, 1999)
A Gulf Coast refinery decided to actively address rising pump maintenance costs and risk of production losses by using accumulated failure data and maintenance costs to identify bad actor pumps, then solving the problems ...
Development Of A Twin Hybrid Noncontacting Gas Seal And Its Application To Process Pumps
(Texas A&M University. Turbomachinery Laboratories, 1999)
In this paper, an innovative approach of applying gas-lubricated, noncontacting sealing technology to process pumps is presented, in which a novel “twin hybrid” design is incorporated to address the issues of gas seal ...
Component Balance For Centrifugal Pumps - Effects Of Product Design, Balance Machine Tooling, And The Balancing Process On Balancing Repeatability
(Texas A&M University. Turbomachinery Laboratories, 1999)
Balancing of pump rotating components, especially impellers, is common practice. The purpose of this effort was to determine the proper design of pump components and balance arbors, create appropriate procedures, and ...
An End-User’s Guide To Centrifugal Pump Rotordynamics
(Turbomachinery Laboratory, Texas A&M University, 2011)
This tutorial outlines the basics of pump rotordynamics in a form that is intended to be Machinery End User friendly. Key concepts will be defined in understandable terms, and analysis and testing options will be presented ...
Pipeline Vibrations And Pressure Pulsations—Reasons And Solutions
(Turbomachinery Laboratory, Texas A&M University, 2011)
Every pump has some kind of non-continual conveying behavior or effect. Because the conveyed liquids as well as the pipelines and support structures in the connected system are elastic, the conveyed liquid will transport ...
Seal And Bearing Failure On A Two-Stage Overhung Pump (Powerpoint Presentation)
(Turbomachinery Laboratory, Texas A&M University, 2011)