This standard specifies the design principles, loading, materials,equipment and structure for hydraulic hoist used in hydropower andwater resources projects.This standard is applicable to the electro-hydraulic hoist forcontrolling all kinds of gates and v...[繼續(xù)閱讀]

    2.1.1 Hydraulic hoistA kind of machinery, which can open and close a gate based on thehydraulic transmission principle for taking the hydraulic pump stationas power oil source to control the flow rate and direction of pressureoil from the hydraulic pump t...[繼續(xù)閱讀]

    The basic symbols and their meanings used in this standard are as thefollowings.F applied forceM momentP pressureN powerm massq discharge quantityQ flow rateE modulus of elasticityG shear modulusσ normal stressτ shear stressσs yield strengthσb tensile str...[繼續(xù)閱讀]

    3.0.1 The hydraulic hoist in water conservancy and hydropowerproject is composed of hydraulic cylinder assembly and its supportingstructure, hydraulic pump station, hydraulic valve block, hydraulicpiping, electric control system, detection system and othe...[繼續(xù)閱讀]

    4.1.1 The design of hydraulic hoist shall meet the requirements ofreliable operation, advanced technology, economic rationality,convenient repair, landscape coordination, safety and energy savingand environmental protection.4.1.2 The general design scheme...[繼續(xù)閱讀]

    4.2.1 The classification of hydraulic hoists is as the followings.(1) According to the working principle of hydraulic cylinder: pistontype and plunger type.(2) According to the piston sealing mode and force on piston rod:single action type and double acti...[繼續(xù)閱讀]

    4.3.1 Hydraulic system shall be provided with reliable hydrauliccontrol and safety protection circuits with complete function andaccurate action based on the type, operation and remote monitoringrequirement of hydraulic hoist, completely, clearly indicate...[繼續(xù)閱讀]

    4.4.1 The integrated structure should be adopted for hydraulicvalve block, its function includes: gate operation functions undervarious working conditions, detection and display of runningparameters of hydraulic system, protection function for operationsa...[繼續(xù)閱讀]

    4.5.1 The hydraulic pump station generally consists of thehydraulic pump motor units, the oil tank assembly and connecting oillines.4.5.2 The type and layout of hydraulic pump motor unit shall bedetermined according to the arrangement of hydraulic pump st...[繼續(xù)閱讀]

    4.6.1 The pipe nominal diameter and wall thickness shall bedetermined through calculation of intensity and velocity according tothe maximum working pressure and maximum flow of hydraulicpipeline.4.6.2 Special pipe trench should be set for outdoor hydrauli...[繼續(xù)閱讀]