Mechanical Design and Manufacturing of Hydraulic Machinery

Description

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 bearings2.4.3 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 runner3 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 components3.5.1 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 turbines4.3 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.