Search and Find
Service
2. Forsthoffer's Rotating Equipment Handbooks - Pumps
of: William E Forsthoffer
Elsevier Trade Monographs, 2006
ISBN: 9780080949338 , 198 Pages
Format: PDF, ePUB, Read online
Copy protection: DRM
Front Cover
1
Forsthoffer's Rotating Equipment Handbooks: Pumps
4
Copyright Page
5
Contents
6
Preface
10
Acknowledgements
12
About the author
14
Chapter 1. Introduction
16
Introduction
16
Objectives
17
What does a pump pump?
17
What comprises a unit?
19
Chapter 2. Pump types and applications
22
Definition of pump types
22
Positive displacement pumps
25
Dynamic pumps
30
When to use positive displacement or centrifugal pumps
37
Chapter 3. Pump characteristics – positive displacement vs centrifugal (kinetic)
40
Introduction
40
Positive displacement pumps
40
Centrifugal (kinetic) pumps
45
Chapter 4. Operation of a pump in a process system
52
Introduction
52
A typical process system
53
System pressure drop
53
Static and head pressure
55
A positive displacement pump in the process system
55
A centrifugal pump in the process system
56
Centrifugal pump stability
56
Chapter 5. Pump performance data
58
The pump curve
58
The limits of the centrifugal pump curve
63
Increasing head produced by a centrifugal pump
66
Chapter 6. The concept of pump head
68
Definition of pump head
68
Process system head requirements
70
Head available (produced)
71
The operating point
74
Chapter 7. Pump selection
78
Introduction
78
Start with a data sheet to completely define requirements
78
Completely define the operating conditions
79
Defining the pump rated point for efficient operation
82
Carefully define critical component requirements
82
Guidelines to use when selecting pump style
85
Chapter 8. Centrifugal pump hydraulic disturbances
100
Introduction
100
Maintaining a liquid inside a pump
101
Causes of damage
108
Preventing hydraulic disturbances
110
The project design phase
110
Field operation
118
Chapter 9. Centrifugal pump testing
124
Introduction
124
Shop testing
124
Field pump hydraulic and mechanical condition determination
133
Chapter 10. Pump mechanical design
138
Introduction
138
Basic elements of centrifugal pumps
138
Volutes
139
Wear rings
142
Impellers
142
Bearings
145
Anti-friction bearings
148
Hydrodynamic bearings
151
Balancing devices
153
Shaft and key stress
155
Chapter 11. Mechanical seals
158
Introduction
158
Function of mechanical seals
159
The seal system
161
Controlling flush flow to the seal
162
Examining some causes of seal failures
163
Seal configurations
164
Flush system types
167
Auxiliary stuffing box and flush plans
173
Chapter 12. Pump control and protection
176
Introduction
176
Objectives of the operating company
176
Adjusting the head produced by a centrifugal pump
181
Varying process flow of a positive displacement pump
182
Multiple pump applications
184
The affinity laws
186
Protecting the pump
190
Pump protection systems
190
Chapter 13. Conversion to Metric System
194
Index
206
All prices incl. VAT