Nelik Centrifugal & Rotary Pumps

Fundamentals With Applications
Erscheinungsjahr 2010
ISBN: 978-1-4200-4972-5
Verlag: Taylor & Francis
Format: PDF
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 152 Seiten

Centrifugal and Rotary Pumps offers both professionals and students a concise reference detailing the design, performance, and principles of operation of the different pumps types defined by the Hydraulic Institute. From historical background to the latest trends and technological developments, the author focuses on information with real-world practicality and techniques you can implement immediately.

Beginning with the fundamentals, the text then shifts to real field cases that address applications, pumpage, system interaction, reliability, failure analysis, and practical solutions. By including specification parameters and criteria for the application of various pumps, this comprehensive book provides necessary and timely material that plant engineers, maintenance staff, operators can use and share with colleagues.

Zielgruppe

Audience
Mechanical Engineers, Designers, Mechanics, Operators, Plant Management, Professors and Students of Rotating Machinery.

Autoren/Hrsg.

Nelik, Lev

Fachgebiete

• Technische Wissenschaften Maschinenbau | Werkstoffkunde Maschinenbau

Inhaltsverzeichnis

INTRODUCTION
CLASSIFICATION OF PUMPS
CONCEPT OF A PUMPING SYSTEM
Liquid Transfer
Input Power, Losses and Efficiency
System Curve
Pump Curve
CENTRIFUGAL PUMP-FUNDAMENTALS
Affinity Laws
Helpful Formulas Per Centrifugal Pump Triangles
Quiz #1: Velocity triangles
Performance Curves
Quiz #2: How much money did a maintenance mechanic save his plant?
Performance Modifications
Quiz #3: A Valve puzzle
Underfiling and Overfiling
Design Modeling Techniques
Specific Speed (Ns)
GEAR PUMPS - FUNDAMENTALS
Quiz #4: Gear Pump Capacity
Cavitation in Gear Pumps
Trapping Methods
Lubrication
User Comments
MULTIPLE SCREW PUMPS
Three Screw Pumps
Two Screw Pumps
User Comments
PROGRESSING CAVITY (SINGLE SCREW) PUMPS
Principle of Operation
Pump Performance Considerations
Power Requirements
Fluid Velocity and Shear Rate
Fluid Viscosity
Inlet Conditions
Guidance for Proper Selection and Installation
Progressing Cavity Pump Applications
Troubleshooting
User Comments
METERING PUMPS
Definition
Features
Where Are Metering Pumps Used?
Types of Metering Pumps
Components of Metering Pumps
Metering Pumps Selection
Control and Integration
Accessories
Typical Applications
The Advantages of Rotary Pumps
Case History #1: Double Suction Centrifugal Pump, Suction Problem
Quiz #5: Are Ns and Nss dependent on speed?
Case History #2: Lube Oil Gear Pump, Noise and Wear Reduction
Quiz #6: Doubling the Gear pump life in 10 minutes?!
Case History #3: Progressing Cavity Pump Failures
Troubleshooting "Pointers" as Given by Interviewed Pump Users and Plant Personnel
Application Criteria and Specification Parameters
Closing Remarks
Appendices