Stuart Meeting the Pump Users Needs

The Proceedings of the 12th International Pump Technical Conference
1. Auflage 2013
ISBN: 978-1-4831-3554-0
Verlag: Elsevier Science & Techn.
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 589 Seiten, Web PDF

Meeting the Pump Users Needs is a documentation of the 12th International Pump Technical Conference. Pump makers have always understood that their equipment provides an essential service to the pump users. Pumps have been designed and built to satisfy the needs of the user. The main thrust of this book is to share between users, specifiers, and makers their knowledge and experiences leading to better understanding of what the user needs now and would like for the future, and what the designer/maker can provide now and may be able to offer for the future. This book also describes an unusual method of calculating a head generated across a multistage pump when the impeller diameters are changed. The method leads to significantly larger calculated changes of head than predicted from the conventional affinity law approach. This text is a useful reference and source of information for engineering students and those conducting research on pump manufacturing.

Dr. Sam Stuart is a physiotherapist and a research Fellow within the Balance Disorders Laboratory, OHSU. His work focuses on vision, cognition and gait in neurological disorders, examining how technology-based interventions influence these factors. He has published extensively in world leading clinical and engineering journals focusing on a broad range of activities such as real-world data analytics, algorithm development for wearable technology and provided expert opinion on technology for concussion assessment for robust player management. He is currently a guest editor for special issues (sports medicine and transcranial direct current stimulation for motor rehabilitation) within Physiological Measurement and Journal of NeuroEngineering and Rehabilitation, respectively.

Autoren/Hrsg.

Stuart, Sam

Inhaltsverzeichnis

1;Front Cover;1
2;Meeting the Pump Users Needs;2
3;Copyright Page;3
4;Table of Contents;6
5;12 TH TECHNICAL CONFERENCE;8
5.1;INTRODUCTION;8
6;Chapter 1. "Modular Design" an approach to optimise pump performances saving manufacturing costs;12
6.1;ABSTRACT;13
6.2;TOPICS;14
6.3;SINGLE STAGE PUMP;15
6.4;MULTISTAGE PUMP;19
6.5;CONCLUSIONS;22
6.6;REFERENCES;22
7;Chapter 2. Concurrent design in centrifugal pumps;23
7.1;1. INTRODUCTION;25
7.2;2. CONCEPT OF CONCURRENT DESIGN;26
7.3;3. SCOPE OF PRESENT WORK;26
7.4;4. APPROACH TO THE PROBLEM;26
7.5;5. EXPERIMENTAL VERIFICATION;31
7.6;6. RESULTS & DISCUSSION;31
7.7;7. CONCLUSIONS;32
7.8;REFERENCES;33
8;Chapter 3. Development and operational performance of Fluiglide thin surface coatings to Yorkshire Water medium scale water supply pumps;46
8.1;Summary;46
8.2;1. Introduction;47
8.3;2. Description of Installation;53
8.4;3. Results;55
8.5;4. Discussion of Results;56
8.6;5. Future Programme;57
9;Chapter 4. Exachem - A new design for canned motor pumps;58
9.1;Introduction;58
9.2;Firstl., the shaft seals;58
9.3;Secondly, antifriction bearings;58
9.4;Operation;62
9.5;Maintenance;62
9.6;Design description of the EXACHEM;62
9.7;Conclusion;68
10;Chapter 5. Centrifugal pump performance testing — power industry user requirements;69
10.1;Abstract;69
10.2;1. Introduction;70
10.3;2. Notation;71
10.4;3. Centrifugal Pump Test Specifications;72
10.5;4. A User View on Pump Testing Standard Specifications;74
10.6;5. Essential Content for a Future Pump Test Standard;79
10.7;6. Special Test Specifications- Proposed Areas for Research & Development;82
10.8;7. Conclusions;89
10.9;Acknowledgement;90
10.10;References;90
10.11;APPENDIX A;92
10.12;APPENDIX B;94
11;Chapter 6. Standard pumps for large projects;99
11.1;INTRODUCTION;99
11.2;NATURE OF THE PROJECT;99
11.3;PUMP TYPE SELECTION;99
11.4;DUTY HEAD CALCULATIONS;103
11.5;PROGRAMME REQUIREMENTS;104
11.6;PROCUREMENT PLAN;105
11.7;PUMP WORKS TESTING;106
11.8;SITE TESTING;108
11.9;DOCUMENTATION;111
11.10;QUALITY ASSURANCE;113
11.11;LOCAL REPRESENTATION;114
11.12;CONCLUSIONS;115
12;Chapter 7. Comparison of various boiler feed pump-designs used in fossil-fired power stations;117
12.1;1.) INTRODUCTION;117
12.2;2.) DESIGN CONCEPT OF THE BFPs;118
12.3;3.) COMPARISON BETWEEN BARREL AND RING SECTION PUMPS;125
12.4;4.) TRANSIENTS;129
12.5;5.) CONCLUSION;133
12.6;References;134
13;Chapter 8. Avoid low flow pump problems;135
13.1;1. INTRODUCTION;135
13.2;2. THE CAUSES;135
13.3;3. THE EFFECTS;140
13.4;4. PREVENTATIVE MEASURES;143
13.5;5 MINIMUM FLOW, OR MINIMUM CONTINUOUS FLOW;149
13.6;6 CONCLUSION;150
14;Chapter 9. Centrifugal pump trouble shooting: the 90% solution;151
14.1;ABSTRACT;151
14.2;INTRODUCTION;152
14.3;PROBLEM DEFINITION AND REPORTED SYMTOMS;152
14.4;GATHERING PERFORMANCE DATA;155
14.5;REVIEW OF PUMP HYDRAULICS;158
14.6;OBTAINING MEASURED HYDRAULIC DATA AND CONVERTING IT INTO PERFORMANCE DATA;165
14.7;HYDRAULIC DATA ANALYSIS;166
14.8;MECHANICAL FAILURES WITHOUT ANY PRECEDING PERFORMANCE DECLINE;173
14.9;MECHANICAL FAILURE WITH ALMOST TOTAL LOSS OF PERFORMANCE;175
14.10;MECHANICAL/HYDRAULIC INTERRELATIONSHIPS;175
14.11;References;187
15;Chapter 10. A method for experimental and numerical characterisation of the vibratory behaviour of a main coolant pump;188
15.1;Summary;188
15.2;1.Introduction;188
15.3;2. Description of the problem;188
15.4;3. Description of the excitation process;189
15.5;4. Description of the analysis method;190
15.6;6. Experimental Results;191
15.7;7. Numerical Approach;192
15.8;8. Conclusion;192
15.9;9. References;192
16;Chapter 11. Cost-conscious operation of submersible pumps in water supply and industry;199
16.1;1. Introduction;199
16.2;2. Subaerslble Puape in Deep Helle;199
16.3;3. Submersible Pumpe with Horizontal Installation;205
16.4;4. Variable Speed for Energy Conservation;209
16.5;5.Variable Frequency Subeeralble Motors;213
16.6;6. Summery;216
16.7;7. References;216
17;Chapter 12. "Towards vibration reduction and isolation";218
17.1;SUMMARY;218
17.2;1. INTRODUCTION;219
17.3;2. NAVAL PUMPS;219
17.4;3. INDUSTRIAL EQUIPMENT;229
17.5;4. SYSTEM DESIGN;232
17.6;5. CONCLUSIONS;232
17.7;6. ACKNOWLEDGMENTS;232
17.8;7. REFERENCES;233
18;Chapter 13. The thermodynamic experience in the UK water industry;234
18.1;INTRODUCTION;235
18.2;POTENTIAL AREAS OF ENERGY SAVINGS;237
18.3;IMPROVEMENTS IN PUMPING EFFICIENCY;237
18.4;EXISTING METHODS MEASUREMENT;239
18.5;THEORY;243
18.6;REFERENCE;256
19;Chapter 14. Considerations affecting the design of pump chambers for improved mechanical seal reliability;266
19.1;1. INTRODUCTION;267
19.2;2. STANDARDS;268
19.3;3. TECHNICAL BACKGROUND;269
19.4;4. EXPERIMENTAL WORK;280
19.5;5. OUTPUT FROM EXPERIMENTAL PROGRAMME;281
19.6;6. CONCLUSIONS;285
19.7;ACKNOWLEDGEMENTS;285
19.8;References;286
20;Chapter 15. Critical operating conditions of a mechanical seal;296
20.1;RESUME;296
20.2;PREFACE;296
20.3;EXPERIMENTAL RESEARCH;296
20.4;ANALTYIC RESEARCHES;298
20.5;CALCULATION OF THE SEAL;300
20.6;MODERNIZATION OF SEALS;301
20.7;LITERATURE;301
21;Chapter 16. Seals for FGD Duties;304
21.1;1. INTRODUCTION;304
21.2;2. FGD PROCESSES;304
21.3;3. SEAL ARRANGEMENT;306
21.4;4. FGD SEAL SIMULATION TRIALS;309
21.5;5. CONCLUSION;311
22;Chapter 17. Super stainless steels for seawater service;319
22.1;Summary;319
22.2;1. Introduction;319
22.3;2. Corrosion of Stainless Steels;320
22.4;3. Alloys Considered;321
22.5;4. Corrosion Testing;322
22.6;5. Results;324
22.7;6. Discussion;324
22.8;7. Conclusion;326
22.9;8. References;328
23;Chapter 18. The problems of design, installation and operation of cryogenic pumps;338
23.1;1. Introduction;339
23.2;2. Pump Types;340
23.3;3. Mechanical Seals;343
23.4;4. Cool Down;344
23.5;5. NPSH;347
23.6;6. Cavitation;348
23.7;7. Inlet Flow Distribution;350
23.8;8. Safety;350
23.9;9. Conclusion;350
23.10;Acknowledgement;351
23.11;References;351
24;Chapter 19. Experience in development and commercialization of adaptive metering pump units;359
24.1;SUMMARY;359
24.2;INTRODUCTION;359
24.3;1. BALANCE OF VOLUME LOSSES IN HYDROCYLINDER OF A METERING PUMP;360
24.4;2. EXPERIMENTAL STUDIES;363
24.5;3. PRACTICAL USE;364
24.6;NOMENCLATURE;365
24.7;REFERENCES;365
25;Chapter 20. Thermoplastic pumps reduce downtime. minimizing maintenance costs;368
25.1;THE PLASTICS;369
25.2;THERMOPLASTICS Vs METALS;370
25.3;SPOTLIGHT ON MATERIALS;372
25.4;POLYPROPYLENE;372
25.5;POLYETHYLENE;373
25.6;THE VINYLS;373
25.7;THE FLUOROPLASTICS;374
25.8;NON-STRUCTURAL COMPONENTS;374
25.9;NATURAL RUBBER;375
25.10;BUTYL;375
25.11;NEOPRENE;376
25.12;ETHYLENE PROPYLENE (NORDEL - DuPont);376
25.13;OTHER MATERIALS;377
26;Chapter 21. Selection of an optimal centrifugal pump for transfer of abrasive slurries in concrete operating conditions;380
27;Chapter 22. Sigma mixed-flow pumps;400
27.1;1. INTRODUCTION;400
27.2;2.0 MODEL RESEARCH;402
27.3;3.0 DESIGN OF MIXED-FLOW PUMPS;412
28;Chapter 23. Optimization of pumping elements of eccentric screw pumps;422
28.1;1) Pumping Elements & Pumping Principle;422
28.2;2) Stator;422
28.3;3) Advantages of the corrected stator;424
29;Chapter 24. Rotary screw pumps for multiphase products;432
29.1;INTRODUCTION;432
29.2;APPLICATIONS;432
29.3;PUMP DESIGNS;433
29.4;PUMPING PRINCIPLE;434
29.5;DRESSER PUMP TESTS;435
29.6;ONCLUSION;440
30;Chapter 25. Pumping viscous fluids with progressing cavity pumps;447
31;Chapter 26. 'Omnidyne' — a fresh approach to integrated pumps and motors;465
31.1;MEETING THE PUMP USER'S NEEDS;465
31.2;'OMNIDYNE' DESCRIPTION;466
31.3;DEVELOPMENT HISTORY;469
31.4;APPLICATIONS AND THEIR DESIGN CRITERIA;474
31.5;CONCLUSIONS;486
32;Chapter 27. Use of positive displacement pumps for low lubricating media;487
33;Chapter 28. Reliability and efficiency in centrifugal pumps;511
33.1;INTRODUCTION;511
33.2;IN LINE PUMPS AND WATER TURBINES;511
33.3;BACK PULL OUT PUMPS;512
33.4;MECHANICAL SEALS;512
33.5;IN LINE PUMP PHILOSOPHY;512
33.6;FRONT PULL OUT PUMPS;513
33.7;VERTICAL IN LINE PUMPS;513
33.8;SITE TESTS AND EFFICIENCY FORMULA;514
33.9;MOTOR MANUFACTURE;514
33.10;CRITICAL SPEED OF THE COMBINED UNIT;514
33.11;VITAL IMPORTANCE OF RIGIDITY;515
33.12;IMPELLER PASSAGE GENERATION;515
33.13;HEAD PER STAGE AND CAUSES OF FRACTURE;515
33.14;PUMP OR COMPRESSOR;516
33.15;CONCLUSION;517
33.16;REFERENCES;517
34;Chapter 29. Criteria for the development of a modern magnetic clutch pump with maximum operational reliability;520
34.1;Summary;521
34.2;1. Active operational reliability;525
34.3;2. Passive operational reliability;540
35;Chapter 30. Special features of designing dynamic pumps with open impellers;544
36;Chapter 31. The quality of design;560
36.1;1. Setting the scene;560
36.2;2. The meaning of cost;564
36.3;3. Design methodology;565
36.4;4.2 Facility chart;566
36.5;6. Some generalised application aspects;574
36.6;7. References;578
37;Chapter 32. The change rule of end-head and flow of multistage centrifugal pump after diameter changed;579
37.1;PREFACE;579
37.2;1. GENERAL;579
37.3;2. FORMULA DEDUCTION;581
37.4;3. THL CHANGE RULL OF FLUW;588