Centrifugal PumpsSpringer Science & Business Media, 25/10/2007 - 926 من الصفحات An up-to-date and unparalleled in-depth treatment of all kinds of flow phenomena encountered in centrifugal pumps is given, including the complex interactions of fluid flow with vibrations and wear of materials. The scope includes all aspects of hydraulic design, 3D-flow phenomena and partload operation, cavitation, numerical flow calculations, hydraulic forces, pressure pulsations, noise, pump vibrations (notably bearing housing vibrations diagnostics and remedies), pipe vibrations, pump characteristics and pump operation, the effects of highly viscous flows, pumping of gas-liquid mixtures, hydraulic transport of solids, fatigue damage to impellers or diffusers, material selection under the aspects of fatigue, corrosion, erosion-corrosion or hydro-abrasive wear, pump selection, and hydraulic quality criteria. Information on the methods and procedures for the various calculations and failure diagnostics discussed in the text are presented in tables which may be considered almost unique in the open literature. This comprehensive handbook focuses on practical application in the industry and is free of mathematical or theoretical ballast. In order to find viable solutions in practice, the physical mechanisms involved must be thoroughly understood. The book is focused on fostering this understanding which will benefit the pump engineer in industry as well as academia and students. |
المحتوى
1 | |
16 | |
Table D7 2 | 21 |
2 Submerged turbulent jets | 32 |
6 Friction losses of pipes and flat plates | 38 |
Pump types and performance data | 39 |
2 Total dynamic head and net positive suction head NPSH | 44 |
3 Pump types | 50 |
2 Uncertainty of CFDcalculations of pumps 476477 | 476 |
1 Rotation of the fluid in the impeller sidewall gaps 512513 | 512 |
4 Radial thrust calculation | 538 |
2 Design guidelines for low pressure pulsations | 551 |
5 Forced versus selfexcited vibrations | 576 |
6 Assessment of shaft vibrations from bearing clearance | 590 |
10 Impact of hydraulic design on bearing housing vibrations | 611 |
12 Acoustical properties of system components | 626 |
Table D7 3 | 51 |
Pump hydraulics and physical concepts | 69 |
Table D9 1 | 97 |
1 Velocity triangle at impeller inlet | 131 |
Annular seals | 137 |
10 Influence of roughness and Reynolds number on efficiency | 143 |
1 Diffuservolute characteristic and best efficiency point | 162 |
2 Modification of pump characteristics | 170 |
3 Analysis of performance deficits | 181 |
Table D10 3 | 229 |
Suction capability and cavitation | 257 |
1 Assessment of the risk of cavitation damage 320321 | 320 |
3 Cavitation damage | 329 |
analysis and remedies 326 6 8 1 Record damage and operation parameters 326 6 8 2 Forms of cavitation and typical cavitation damage patterns 327 ... | 335 |
1 Impeller calculation | 346 |
2 Swirl distribution at impeller outlet | 372 |
4 Airfoils | 386 |
7 Diffuser and volute design calculations | 420 |
Numerical flow calculations | 429 |
1 Law of the wall and velocity distributions | 440 |
Operation of centrifugal pumps | 639 |
1 Calculation of suction pressure decay transients | 669 |
1 Turbine characteristics | 700 |
1 Estimation of characteristics for pumping viscous fluids | 721 |
3 1 GasLiquidMixtures | 744 |
4 Expansion of gasliquid mixtures | 764 |
5 Hydraulic transport of solids | 769 |
1 Impeller or diffuser vane loading | 787 |
6 Materials for sea water at T 30 C 800801 | 800 |
9 Steel selection based on the pitting index PI | 818 |
13 Wear ring materials | 833 |
16 Estimation of metal loss due to hydroabrasive wear | 846 |
Pump selection and quality considerations | 857 |
1 Pump selection | 865 |
4 Energy level of pumps and quality classes | 878 |
Appendices | 881 |
891 | |
917 | |