Centrifugal Pumps Design and Application 2nd ed - Val S. Lobanoff, Robert R. Ross (Butterworth-Heinemann, 1992)
Double-Case Pumps 225 5. Survey of Feed Pump Outages, FP 754 Research Project 641, Electric Power Research Institute, Palo Alto, CA, 1978. 6. Verhoeven, J. J. "Rotordynamic Considerations in the Design of High Speed, Multistage Centrifugal Pumps," Proceedings of the Fifth International Pump Users Symposium, Texas A&M University, May 1988, 7. Verhoeven, J. J. "Rotor Dynamics of Centrifugal Pumps, a Matter of Fluid Forces," The Shock and Vibration Digest, Vibration Institute, Volume 23, Number 7, July 1991.
13 by George Wilson Goulds Pumps, Inc. Slurry Pumps There are various types of centrifugal slurry pumps, which are identified by their capability to handle solids ranging in size, hardness, concentration, and velocity. An understanding of these important factors will lead to an optimum choice of pump design where the materials of construction and rotational speed are ideally matched to the process system, Slurry Abrasivity The abrasiveness of slurries is difficult to define due to the number of variables involved. It is dependent on the nature of the slurry being pumped and the materials of construction of the pump liquid end components. Wear increases with increasing particle size. For example, the rate of erosion wear when pumping a silica sand slurry is approximately proportional to the average particle size raised to the power of 1.4. Wear increases with concentration; the relationship is linear up to about 10% by volume. At higher concentrations, the rate of wear will level out due to the cushioning effect of the particles as they collide. Wear increases rapidly when the particle hardness exceeds that of the metal surface being abraded. The effective wear resistance of a metal will depend on the relative hardness of the metal to that of the particle. 226
- Page 190 and 191: High Speed Pumps 175 History and De
- Page 192 and 193: High Speed Pumps 177 Figure 11-2. (
- Page 194 and 195: High Speed Pumps 179 some portion o
- Page 196 and 197: High Speed Pumps 181 This is to say
- Page 198 and 199: High Speed Pumps 183 This expressio
- Page 200 and 201: High Speed Pumps 185 Figure 11-3. P
- Page 202 and 203: High Speed Pumps 187 As an aside, p
- Page 204 and 205: High Speed Pumps 189 Figure 11-5. I
- Page 206 and 207: High Speed Pumps 191 Figure 11-7. I
- Page 208 and 209: High Speed Pumps 193 Figure 11-9. R
- Page 210 and 211: High Speed Pumps 195 Figure 11-10.
- Page 212 and 213: High Speed Pumps 19? Figure 11-11.
- Page 214 and 215: High Speed Pumps 199
- Page 216 and 217: High Speed Pumps 201 Figure 11-13.
- Page 218 and 219: High Speed Pumps 203 nal bearings a
- Page 220 and 221: High Speed Pumps 205 Barske, U, M.,
- Page 222 and 223: Double-Case Pumps 207 jected to ext
- Page 224 and 225: Double-Case Pumps 209 Figure 12-3.
- Page 226 and 227: Double-Case Pumps 211 Figure 12-4.
- Page 228 and 229: Double-Case Pumps 213 ally by split
- Page 230 and 231: Double-Case Pumps 215 The throttle
- Page 232 and 233: Figure 12-11. pump for 4,000 psi In
- Page 234 and 235: Double-Case Pumps 219 so that the t
- Page 236 and 237: Double-Case Pumps 221 Figure 12-12.
- Page 238 and 239: Doubte-Case Pumps 223 Volute Casing
- Page 242 and 243: Slurry Pumps 227 An approximate com
- Page 244 and 245: Slurry Pumps 229 Figure 13-2. Nomog
- Page 246 and 247: Slurry Pumps 231 Table 13-2 Alloys
- Page 248 and 249: Slurry Pumps 233 Figure 13-3. Class
- Page 250 and 251: Figure 13-4, (A) (B) (C)
- Page 252 and 253: Slurry Pumps 237 There is little to
- Page 254 and 255: Figyre 13-7, (courtesy Pumps, Inc.)
- Page 256 and 257: Flgyr« 13-8, with (courtesy Goulds
- Page 258 and 259: Slurry Pumps 243 ing the pump speed
- Page 260 and 261: Slurry Pumps 245 Where there exists
- Page 262 and 263: Hydraulic Power Recovery Turbines 2
- Page 264 and 265: Hydraulic Power Recovery Turbines 2
- Page 266 and 267: Hydraulic Power Recovery Turbines 2
- Page 268 and 269: Hydraulic Power Recovery Turbines 2
- Page 270 and 271: Hydraulic Power Recovery Turbines 2
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- Page 274 and 275: Hydraulic Power Recovery Turbines 2
- Page 276 and 277: Hydraulic Power Recovery Turbines 2
- Page 278 and 279: Hydraulic Power Recovery Turbines 2
- Page 280 and 281: Figure 14-14. Internally adjustable
- Page 282 and 283: Hydraulic Power Recovery Turbines 2
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Double-Case <strong>Pumps</strong> 225<br />
5. Survey of Fe<strong>ed</strong> Pump Outages, FP 754 Research Project 641, Electric<br />
Power Research Institute, Palo Alto, CA, 1978.<br />
6. Verhoeven, J. J. "Rotordynamic Considerations in the <strong>Design</strong> of High<br />
Spe<strong>ed</strong>, Multistage <strong>Centrifugal</strong> <strong>Pumps</strong>," Proce<strong>ed</strong>ings of the Fifth International<br />
Pump Users Symposium, Texas A&M University, May<br />
1988,<br />
7. Verhoeven, J. J. "Rotor Dynamics of <strong>Centrifugal</strong> <strong>Pumps</strong>, a Matter of<br />
Fluid Forces," The Shock <strong>and</strong> Vibration Digest, Vibration Institute,<br />
Volume 23, Number 7, July 1991.
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