Mechanical Design and Manufacture of Hydraulic Machinery. (2018)

• Record Type: Book
• Other Names: Zu-yan, Mei
• Contents: Cover -- Half Title -- Title Page -- Copyright Page -- Contents -- Preface -- Foreword of the Editor -- Acknowledgements -- Contributing Authors -- 1 General concepts of hydraulic turbine construction -- 1.1 Hydroelectric generating unit layouts -- 1.2 Typical construction of turbines -- 1.2.1 Impulse turbines -- 1.2.2 Francis turbines -- 1.2.3 Axial-flow turbines -- 1.2.4 Pump-turbines -- 1.2.5 Micro hydroelectric units -- 2 Construction of Francis turbines -- 2.1 General -- 2.2 Description of Francis turbine construction -- 2.3 Development of Francis turbines -- 2.4 Main components of Francis turbines -- 2.4.1 Rotating parts -- 2.4.2 Turbine bearings -- 2.4.3 Shaft seals -- 2.4.4 Regulating mechanism -- 2.4.5 Spiral case and stay ring -- 2.4.6 Draft tube -- 2.4.7 Turbine assembly -- 2.4.8 Draining and filling facilities -- 2.5 Establishing of main dimensions -- 2.5.1 Determination of runner parameters -- 2.5.2 Determination of suction height -- 2.5.3 Dimensioning of other flow passage components -- 2.6 Structural design -- 2.6.1 Stay ring/spiral case -- 2.6.2 Upper and lower covers -- 2.6.3 Guide bearing -- 2.6.4 Regulating ring -- 2.6.5 Flange connections -- 2.7 Assembly and dismantling of Francis turbines -- 2.7.1 Assembly of turbine -- 2.7.2 Dismantling of runner -- 3 Construction of axial-flow and diagonal-flow turbines -- 3.1 General features of axial-flow and diagonal-flow turbines -- 3.2 Axial-flow turbines -- 3.2.1 Hydraulic characteristics -- 3.2.2 Construction of Kaplan turbines -- 3.2.3 Runner geometry -- 3.2.4 Runner blades -- 3.2.5 Blade-adjusting mechanism -- 3.2.6 Oil pressure distributor -- 3.3 Diagonal-flow turbines -- 3.3.1 Construction of diagonal-flow turbines -- 3.3.2 Runners of diagonal-flow turbines -- 3.4 Embedded parts of axial-flow and diagonal-flow turbines -- 3.4.1 Spiral case -- 3.4.2 Stay ring. 3.4.3 Runner chamber -- 3.5 Dimensioning of turbine components -- 3.5.1 Runner blade and component -- 3.5.2 Blade-adjusting mechanism -- 3.5.3 Stay ring for concrete spiral case -- References -- 4 Construction of tubular turbines -- 4.1 General features of tubular turbines -- 4.1.1 Application ranges of tubular turbines -- 4.1.2 Arrangement and construction features of tubular turbines -- 4.2 Hydraulic characteristics and flow passage design of tubular turbines -- 4.2.1 Hydraulic characteristics -- 4.2.2 Bulb casing, inlet passage and support structure -- 4.2.3 Runner chamber, guide apparatus and draft tube -- 4.2.4 Flow passages of S-type tubular turbines -- 4.3 Construction of main components of tubular turbines -- 4.3.1 Main shaft, bearings and blade-adjusting mechanism -- 4.3.2 Speed increaser -- 4.3.3 Guide apparatus -- 4.4 Construction of straight-flow turbines -- 4.4.1 Features of construction and arrangement -- 4.4.2 Support elements and rotor seals of STRAFLO turbines -- 4.4.3 Development prospects of straight-flow turbines -- References -- 5 Construction of impulse turbines -- 5.1 General -- 5.1.1 Range of application -- 5.1.2 Basic hydraulic and structural principles -- 5.1.3 Layout -- 5.2 Horizontal shaft Pelton turbine -- 5.2.1 Runner -- 5.2.2 Shaft -- 5.2.3 Housing -- 5.2.4 Nozzle -- 5.2.5 Feeding system -- 5.2.6 Control mechanism -- 5.3 Vertical shaft Pelton turbine -- 5.3.1 Runner -- 5.3.2 Shaft -- 5.3.3 Housing -- 5.3.4 Nozzle -- 5.3.5 Feeding system -- 5.3.6 Control mechanism -- 5.3.7 Pumped storage plants -- 5.3.8 Operation under back pressure -- 5.4 Research -- 5.4.1 Scale effects -- 5.4.2 Cavitation -- 5.5 Future programmes -- Acknowledgements -- References -- 6 Construction of pump-turbines -- 6.1 General -- 6.1.1 Francis reversible pump-turbines -- 6.1.2 Deriaz reversible pump-turbines. 6.1.3 Axial-flow reversible pump-turbines -- 6.2 Francis reversible pump-turbines -- 6.2.1 Runner -- 6.2.2 Guide vanes -- 6.2.3 Draft tube -- 6.2.4 Operation and control -- 6.3 Multi-stage reversible pump-turbines -- 6.3.1 Two-stage pump-turbines -- 6.3.2 Multi-stage pump-turbines of three or more stages -- 6.4 Tandem pump-turbines -- 6.4.1 Types of tandem pump-turbines -- 6.4.2 Features of tandem pump-turbines -- 6.4.3 Operation and control -- References -- 7 Inlet valves and discharge valves -- 7.1 General -- 7.2 Butterfly valves -- 7.3 Through-flow valves -- 7.4 Rotary valves -- 7.5 Turbine cylinder gate -- 7.6 Discharge valves and pressure regulating valves -- 7.7 Operating servomotors for inlet valves -- 8 Structural design of hydraulic turbines -- 8.1 Materials for hydraulic turbines -- 8.1.1 The use of various types of materials -- 8.1.2 Stainless steel -- 8.1.3 Sand erosion resistant materials -- 8.1.4 Protective paints -- 8.2 Criteria of structural design -- 8.3 Stress design -- 8.3.1 Allowable stress for static strength design -- 8.3.2 Design with consideration of fatigue strength -- 8.3.3 Growth rate of fatigue crack and allowable size of defects -- 8.4 Stress and strain analysis -- 8.4.1 Finite element method -- 8.4.2 Boundary element method -- 8.5 Computer-aided engineering -- 8.5.1 General -- 8.5.2 Flow analysis -- 8.5.3 Loss analysis of hydraulic turbines -- 8.5.4 Analysis of dynamic characteristics of shaft system -- 8.5.5 Hydraulic transients in pipelines -- 8.6 CAD/CAM/CAT -- 8.6.1 Computer-aided design -- 8.6.2 Computer-aided machining -- 8.6.3 Computer-aided testing -- References -- 9 Manufacture of hydraulic turbines -- 9.1 Special features of hydraulic turbine manufacture -- 9.1.1 Production features of Francis turbines -- 9.1.2 Production features of axial-flow turbines -- 9.1.3 Production features of tubular turbines. 9.1.4 Production features of impulse turbines -- 9.2 Manufacturing technique of turbine runners -- 9.2.1 Runners for Francis turbines -- 9.2.2 Runners for axial-flow turbines -- 9.2.3 Runners for Pelton turbines -- 9.3 Manufacturing of main shafts -- 9.3.1 Forged shafts -- 9.3.2 Welded shafts -- 9.3.3 Machining of main shafts -- 9.4 Manufacture of guide apparatus -- 9.4.1 Head cover -- 9.4.2 Bottom ring -- 9.4.3 Guide vanes -- 9.4.4 Preassembly of guide apparatus -- 9.5 Manufacturing of embedded parts -- 9.5.1 Spiral case -- 9.5.2 Stay rings -- 9.5.3 Runner chamber -- 9.5.4 Draft tube liner -- References -- 10 Construction of small turbines -- 10.1 General -- 10.1.1 Range of application of small turbines -- 10.1.2 Types of turbines and their installations -- 10.2 Small reaction turbines -- 10.2.1 Tubular turbines -- 10.2.2 Axial-flow turbines -- 10.2.3 Francis turbines -- 10.2.4 Flow passage components -- 10.3 Small impulse turbines -- 10.3.1 Cross-flow turbines -- 10.3.2 Inclined-jet turbines -- 10.4 Serialisation and selection of small turbines -- 10.4.1 Standardized turbine series -- 10.4.2 Selection of small turbines -- References -- 11 General concepts of pump construction -- 11.1 Fields of application of pumps -- 11.2 Typical pump designs -- 11.2.1 Axial-flow pumps -- 11.2.2 Single stage centrifugal pumps -- 11.2.3 Single stage mixed-flow pumps -- 11.2.4 Multi-stage pumps -- 12 Construction of centrifugal pumps -- 12.1 General trends of impeller design -- 12.1.1 Specific speed -- 12.1.2 Suction performance -- 12.1.3 Stability considerations -- 12.2 Construction of suction and discharge chambers -- 12.2.1 Suction chamber -- 12.2.2 Discharge chamber -- 12.3 DifFuser and return passage -- 12.4 Construction of pump casing -- 12.4.1 Horizontally split casing -- 12.4.2 Ring section casings -- 12.4.3 Barrel type casing -- 12.5 Rotating components. 12.5.1 Shaft -- 12.5.2 Bearings -- 12.5.3 Balancing devices -- 12.5.4 Shaft seals -- 12.5.5 Fluid seals and rotordynamics -- 12.6 High performance high speed pumps -- 12.6.1 High performance centrifugal pumps -- 12.6.2 Suction inducers -- 12.7 Large capacity low head pumps -- References -- 13 Construction of axial-flow, mixed-flow and tubular pumps -- 13.1 General features of low head pumps -- 13.1.1 Variable-pitch blade and fixed blade impellers -- 13.1.2 Hydraulic and mechanical loading on variable-pitch blades -- 13.1.3 Stress and vibration mode of variable-pitch blades -- 13.1.4 Axial thrust -- 13.1.5 Blade pitch control mechanism -- 13.2 Low head pump installation -- 13.2.1 Typical examples of low head pump installation -- 13.2.2 Recent trends of low head pump installation -- 13.3 Intake structures for low head pumps -- 13.3.1 Suction sump design -- 13.3.2 Suction sump model test -- 13.3.3 Example of suction sump problem -- 13.4 Large capacity low head pumps with concrete volute R Canavelis, France -- 13.4.1 Scope of application -- 13.4.2 Description of pump -- 13.4.3 Materials for concrete volute pumps -- 13.4.4 Construction and erection -- References -- 14 Material selection for pump construction -- 14.1 General remarks -- 14.2 Environment and service condition -- 14.2.1 Service condition of installation -- 14.2.2 Properties of fluids -- 14.2.3 Constituents of fluids and properties -- 14.3 Mechanism of material damage -- 14.3.1 Corrosion -- 14.3.2 Uniform corrosion -- 14.3.3 Local corrosion (with no mechanical stress) -- 14.3.4 Local corrosion (with mechanical stress) -- 14.3.5 Abrasion wear -- 14.3.6 Mechanism of galling and gall resistance -- 14.4 Selection of engineering materials for pumps -- 14.4.1 Essential structural materials and their classification -- 14.4.2 Examples of pump material selection -- References.
• Publisher Details: Florence : Routledge
• Publication Date: 2018
• Copyright Date: 1991
• Extent: 1 online resource (563 pages)
• Subjects: 621.2; Hydraulic machinery-Design and construction; Electronic books
• Languages: English
• ISBNs: 9781351918947
• Related ISBNs: 135191894X; 9781856288200
• Notes: Note: Description based on publisher supplied metadata and other sources.
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
• Access Usage: Restricted: Printing from this resource is governed by The Legal Deposit Libraries (Non-Print Works) Regulations (UK) and UK copyright law currently in force.