Centrifugal Pumps Design and Application 2nd ed - Val S. Lobanoff, Robert R. Ross (Butterworth-Heinemann, 1992)

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Chemical Pumps Metallic and Nonmetallic 327 Sodium Chlorite—Na CIO 3 This is used for bleaches, herbacides, explosives, and rocket fuels. Pumps can be in 316 or nonmetallic. Pulp and Paper Sulfite process: usually acids and bleaches. Sulfate (which is Kraft) is used in making strong cardboard containers and wrappings. Usually use titanium or vinyl ester pumps. Metal Finishing Electronic plating, cleanings such as oil, rust, and scale. Usually use ductile iron pumps. Plating usually use nonmetallic pumps to prevent stray currents. Waste treating of the vent plating baths are usually 316 or eonmetallic pumps. Carbon Steel Pickling Sulfuric acid was replaced by hydrochloric acid to give a better finish. Use 316, alloy 20, or nonmetallic pumps. Stainless Steel Pickling Nitric hydrofluoric acid solutions process is not suitable for nonmetallic pump application. Oesalinization and Water Purification Desalinization and water purification are done through distillation or reverse osmosis. Usually a simple plant used for marine or power plants is used for distillation. The size of the plant can be scaled up or down. It can tolerate a wide latitude of feeder water quality, but requires high temperatures and results in more corrosion and more maintenance. It is usually only efficient using low pressure steam. The temperature is from 70° to 250°F with a vacuum as low as 25 inches of mercury. The pumps are usually 316 or alloy 20. The reverse osmosis process using a membrane is simple, compact, more efficient, and uses ambient temperature. The membranes are sensitive to metal pick ups. It can purify dirty well water, brackish water with 200 to 600 psi. If it is used for desalinization of salt water, the pressures are from 800 to 1000 psi. Miscellaneous pumps can either be 316 or nonmetallic.
328 Centrifugal Pumps: Design and Application Secondary Oil Recovery (Waterflood) When no convenient surface water is available, deep well turbine pumps are used to pump the water containing calcium sulfite to the surface. This is filtered or chemically treated before reinjection to prevent clogging of the pores in oil sand. The oil and brine mixture then comes to the surface where it is separated. The water is a corrosive brine with hydrogen sulfide from the contact with oil. The brine is chemically treated and filtered for reinjection or disposed of as waste. Chemical pumps of 316 or nonmetallic can be used to transfer the brine. Mining—Copper Leaching and Uranium Solvent Extraction Copper ore is normally less than 1 % copper. Flotation or leaching or solvent extraction is used to upgrade the ore. Copper emerges as a copper sulfate and then is pumped to an electrolytic cell where it is plated out. Pump material, either 316 or nonmetallic, is used at ambient temperature. For uranium, a solvent extraction is settled and filtered. The clarified solution is mixed with kerosene and organic amines. The solution is stripped and uranium is precipitated as uranium oxide. Nonmetallic pumps or 316 for low head or ambient temperature are used. Industrial Waste Treatment These vary with great quantities due to the nature of the product and process that they drain. The range of fluids is from a discharge of great volumes of cooling to small but concentrated baths of inorganic or organic substances. The pump material is of ductile iron, 316, or nonmetallic. Some of these waste treatments are wastes containing mineral impurities, steel pickling, copper bearing wastes (where very small amounts of copper—less than 1 mg per liter—will interfere with life in a stream or biological sewage treatment works). Wastes containing chromates or cyanides are used for electroplating and electrolytic operations where the maximum is less than 1 mg per liter. They are also used for gas and coke plant wastes, oil-field brines (which are petroleum refinery wastes, mining wastes, or wastes containing organic impurities). They are also used for milk processing, meat packing, brewery and distillery, vegetable and fruit processing, textiles (such as wool, cotton, silk, linen, and dyes), laundries (which have soap, bleaches, dirt and grease), tanneries, and paper mills (which have black, green, and white liquors). The pumps could be ductile iron, stainless, alloy 20, titanium, or nonmetallic.
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CENTRIFIUGAL PUMPS Design & applica
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CENTRIFUGAL PUMPS Design & Applicat
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Contents Preface —..... —......
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ern Pumps, Mine Dewatering Pumps. W
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Stage Pumps. Single-Suction Single-
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Preface When Val and I decided to c
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CENTRIFUGAL PUMPS Design & applicat
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Part 1 Elements of Pump Design
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1 Introduction System Analysis for
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Introduction 5 Figure 1-2. The syst
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Introduction 7 mate responsibility
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Introduction 9 Figure 1-6. Maximum
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2 Specific Speed and Modeling Laws
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Specific Speed and Modeling Laws 13
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Figyre 2-7, New pump from model pum
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Impeller Design 29 Figure 3-1. Requ
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Impeller Design 31 Figure 3-4. Capa
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Impeller Design 33 Step 8: Estimate
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Impeller Design 35 Figure 3-7. Volu
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impeller Design 37 (2) 5 , as final
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Impeller Design 39 The vane develop
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Impeller Design 41 Figure 3-12. Are
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impeller Design 43 Figure 3-16. Inf
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4 General Pump Design It is not a d
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General Pump Design 4? Figure 4-1.
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General Pump Design 49 designed and
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Volute Design 51 Figure 5-1. Volute
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Volute Design 53 Figure 5-2. Radial
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Volute Design 55
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Volute Design 57 Figure 5-4. Effici
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Volute Design 59 Figure 5-5. Typica
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Volute Design 61 Figure 5-8. Univer
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Volute Design S3 Manufacturing Cons
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6 Design of Multi-Stage Casing Mult
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Design of Multi-Stage Casing 67 How
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Design of Multi-Stage Casing 69 Fig
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Design of Multi-Stage Casing 73 sec
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7 Double-Suction Pumps and Side-Suc
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Double-Suction Pumps 79 two. Experi
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Double-Suction Pumps 81 Figure 7-3.
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Double-Suction Pumps 83 LOCATION AR
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8 NPSH The expressions NPSHR and NP
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NPSH 87 Predicting NPSHR The other
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NPSH 89 Figure 8-4. Pressure loss b
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NPSH 91 SUCTION VELOCITY TRIANGLES
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NPSH 93 Figure 8-8. Performance cur
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NPSH 95 Figure 8-10. Leakage across
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NPSH 97 Figure 8-13. Plate inserts
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NPSH 99 Figure 8-17. Influence of p
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NPSH 101 Figure 8-19. Estimating K
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NPSH 103 Step 3: Determine KI* From
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Figure 8«22. Calculating NPSHA for
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NPSH 107 Figure 8-24. NPSHR cavitat
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NPSH 109 Notation KI Friction and a
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Part 2 Application
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9 by Erik B. Fiske BW/JP Internatio
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Vertical Pumps 115 Figure 9-2. Well
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Vertical Pumps 117 Figure 9-4. Subm
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Vertical Pumps 119 Figure 9-6. Inst
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Vertical Pumps 121 Figure 9-8. Barr
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Vertical Pumps 123 • Loading pump
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Vertical Pumps 125 Wet Pit Pumps Th
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Vertical Pumps 127 • Fresh water
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Vertical Pumps 129 Condensate and H
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Vertical Pumps 131 mally insulate w
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Vertical Pumps 133 Figure 9-15. Imp
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Vertical Pumps 135 checked for corr
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Vertical Pumps 137 crating paramete
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10 Pipeline Pipe line, Waterflood,
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Pipeline, Waterflood and CO 2 Pumps
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Pipeline, Waterfiood and CO 2 Pumps
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Figure 10-11. Performance change wi
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Figure 10-13. Seven-stage pump dest
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Pipeline, Waterflood and COa Pumps
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11 By Edward Gravelle Sundstrand Fl
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High Speed Pumps 175 History and De
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High Speed Pumps 177 Figure 11-2. (
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High Speed Pumps 179 some portion o
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High Speed Pumps 181 This is to say
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High Speed Pumps 183 This expressio
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High Speed Pumps 185 Figure 11-3. P
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High Speed Pumps 187 As an aside, p
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High Speed Pumps 189 Figure 11-5. I
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High Speed Pumps 191 Figure 11-7. I
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High Speed Pumps 193 Figure 11-9. R
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High Speed Pumps 195 Figure 11-10.
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High Speed Pumps 19? Figure 11-11.
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High Speed Pumps 199
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High Speed Pumps 201 Figure 11-13.
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High Speed Pumps 203 nal bearings a
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High Speed Pumps 205 Barske, U, M.,
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Double-Case Pumps 207 jected to ext
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Double-Case Pumps 209 Figure 12-3.
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Double-Case Pumps 213 ally by split
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Double-Case Pumps 215 The throttle
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Figure 12-11. pump for 4,000 psi In
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Double-Case Pumps 219 so that the t
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Doubte-Case Pumps 223 Volute Casing
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Double-Case Pumps 225 5. Survey of
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Slurry Pumps 227 An approximate com
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Slurry Pumps 229 Figure 13-2. Nomog
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Slurry Pumps 231 Table 13-2 Alloys
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Slurry Pumps 233 Figure 13-3. Class
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Figure 13-4, (A) (B) (C)
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Slurry Pumps 237 There is little to
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Figyre 13-7, (courtesy Pumps, Inc.)
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Flgyr« 13-8, with (courtesy Goulds
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Slurry Pumps 243 ing the pump speed
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Slurry Pumps 245 Where there exists
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Hydraulic Power Recovery Turbines 2
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Figure 14-14. Internally adjustable
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Page 292 and 293: 14-22, Flow of hydraulic recovery a
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Page 300 and 301: Chemical Pumps Metallic and Nonmeta
Page 338 and 339: Driver Chemical Pumps Metallic and
Page 346 and 347: Part3 Mechanical Design
Page 348 and 349: 16 Shaft Design and Axial Thrust Sh
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Page 352 and 353: Shaft Design and Axial Thrust 337 W
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Page 356 and 357: Shaft Design and Axial Thrust 341 b
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Page 360 and 361: Double-Suction Single-Stage Pumps S
Page 362 and 363: Shaft Design and Axial Thrust 347 F
Page 368 and 369: D (with subscript) P D P s T T (wit
Page 370 and 371: Mechanical Seals 355 Figure 17-1. M
Page 372 and 373: Mechanical Seats 357 Figure 17-2B.
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Page 376 and 377: Mechanical Seals 361 Figure 17-4. H
Page 378 and 379: Mechanical Seals 363 Pressure-Veloc
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Mechanical Seals 377 less than 100,
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Mechanical Seals 379 Figure 17-19.
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Mechanical Seals 381 Table 17-4 Tem
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Mechanical Seats 385 steam, is to p
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Mechanical Seats 38? rather than a
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Mechanical Seals 389 Mechanical Sea
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Mechanical Seals 391 seal to work i
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Mechanical Seals 395 The measured l
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Mechanical Seals 39? Figure 17-34.
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Mechanical Seals 401 This design is
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Mechanical Seals 403 alignment, par
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Mechanical Seats 419 Figure 17-58.
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Vibration and Noise in Pumps 421 Re
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Vibration and Noise in Pumps 423 me
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Vibration and Noise in Pumps 425 in
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Vibration and Noise in Pumps 427 pr
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Vibration and Noise in Pumps 429 ot
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Vibration and Noise in Pumps 431 Fi
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Vibration and Noise in Pumps 433 fi
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Vibration and Noise in Pumps 435 pr
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Vibration and Noise in Pumps 437 up
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Vibration and Noise in Pumps 441 na
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Vibration and Noise in Pumps 443 A
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Vibration and Noise in Pumps 453 Re
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Vibration and Noise in Pumps 457 Ac
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Vibration and Noise in Pumps 461 As
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Vibration and Noise in Pumps 463 ci
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Vibration and Noise in Pumps 467 sp
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Vibration and Noise in Pumps 469 Be
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Vibration and Noise in Pumps 475 Vi
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Vibration and Noise in Pumps 489 pe
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Vibration and Noise in Pumps 491 th
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Vibration and Noise in Pumps 4S3 fo
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Part 4 Extending Pump Life
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19 by Malcolm G. Murray, Jr. Murray
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Alignment 499 Figure 19-2. Pump dam
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Alignment 501 The best designs fail
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Table 19-1 Vertical Alignment Movem
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Table 19-2 Continued Horizontal Ali
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Alignment 507 bearing motors becaus
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Alignment 509 meet results. It shou
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Alignment 511 Determination of Tole
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Table 19-3 Continued Primary Alignm
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Alignment 515 Figure 19-3 A & B. Tw
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Table 19*4 Continued Methods of Cal
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Alignment 510 parallelism/perpendic
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Alignment 521 Table 19-5 continued
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Alignment 523 3. Essinger, J. N., B
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Rolling Element Bearings and Lubric
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Roiling Element Bearings and Lubric
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Roiling Element Bearings and Lubric
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Failure Analysis Mechanical Seal Re
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Table 21-2 Causes of Seal Failures
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Mechanical Seal Reliability 561 ^mi
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Mechanical Seal Reliability 563 Sea
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Mechanical Seal Reliability 565 run
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Reliability Mechanical Seal Reliabi
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Index A thermal growth, 519-522 ver
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Critical speed analysis. See also V
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Index 573 inlet angle, 37 classific
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Index 575 Shaft design, 333-343 ind
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double, 52-54 velocity ratio, 50-51
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Centrifugal Pumps Design and Application 2nd ed - Val S. Lobanoff, Robert R. Ross (Butterworth-Heinemann, 1992)

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