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China, Chinese High-Temperature and High-Pressure Back-Pressure Steam Turbine Generator for Power Generation (T812)1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Power Generating SetsSteam Turbine GeneratorTurbine GeneratorSteam Turbine
Zibo Renao Steam Turbine Co., Ltd.
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Product Description Product DescriptionThe T812 steam turbine is a multi - stage back - pressure high - temperature and high - pressure steam turbine. The unit is arranged in a single layer, featuring a small volume and convenient installation. This steam turbine adopts multi - valve regulation and forced lubrication, with the rated speed of the main shaft being 3000 revolutions per minute. The rotor is a solid - forged rotor. The cylinder is designed with an inner and outer double - cylinder structure, resulting in high unit efficiency, low equipment operation cost, and remarkable economic benefits. The steam inlet of the steam turbine can be selected from either the left or right side when viewed from the turbine head, and the steam inlet direction is upward. The exhaust port has two configurations: upward and downward. The steam turbine is connected to the generator through a diaphragm coupling, which can effectively reduce the vibration caused by the coaxiality deviation of equipment installation.Structural FeaturesStructural form: Quick - installed, double - supported multi - stage back - pressure steam turbineArrangement method: Single - layer arrangementMechanical speed control: Full - hydraulic speed controlElectronic speed control: DEH (Digital Electro - Hydraulic Control System)Overspeed protection: Two sets of mechanical fly - weight type plus solenoid valve electronic intelligent controlGland seal form: Labyrinth gland seal with comb - shaped teethMain steam valve: Integrated automatic main steam valve (quick - closing combined device)Main shaft assembly: Solid - forged rotorLubrication system: Forced oil lubrication, equipped with a thin - oil station and coolerThermal expansion compensation: The front bearing support is of sliding thermal compensation typeDetailed PhotosOverall dimension drawingCross-sectional drawing 1-Front Seat Bracket2-Front Bearing Housing3-Main Oil Pump4-Emergency Trip Device5-Electro-Hydraulic Governing System6-Governing Valve and Linkage7-Front Bearing of Thrust Bearing8-Front Steam Seal9-Cylinder10-Adjustment Stage Sleeve11-Main Shaft Assembly12-Inner Casing13-1st Stage Diaphragm14-2nd Stage Diaphragm15-3rd Stage Diaphragm16-4th Stage Diaphragm17-5th Stage Diaphragm18-6th Stage Diaphragm19-Rear Steam Seal20-Rear Bearing21-Rear Bearing Housing22-Base Optimized designProduct ParametersSteam Turbine BodyItemUnitDataProduct Code T812Rated Speed (Gearbox Reduction)r/min3000Number of Turbine Stages 1 regulation stage + 6 pressure stagesGovernor Type DEH Electro-Hydraulic RegulationOverspeed Protection Method Two-out-of-three electrical overspeed protection + mechanical overspeed protectionOverspeed Protection Actuation Speed Rated speed × (1.09 - 1.11)Overspeed Protection Response Times<0.5Vibration Value at Rated Speedmm≤0.05Vibration Value at Critical Speedmm≤0.15Maximum Axial Displacementmm±0.7Weightt27Bearing Lubrication Type Forced lubricationBearing Alarm TemperatureoC85Turbine Dimensions (Length × Width × Height)mm4400×2400×3300Turbine Center Height (from Operating Platform)mm1290Steam Seal Type Comb-Tooth Labyrinth SealNoise LeveldB≤85Unit Continuous Operation Timehr/year8000Auxiliary System ItemUnitDataOil StationFlow rateL/min500Oil Pump Configuration Oil pressure: Adjustable from 0.3 to 1.0 MPaTwo AC oil pumps, one DC oil pumpSeal steam heaterHeat Transfer Aream220Cooling Water Flow Ratet/h50Cooling Water PressureMPa0.2~0.4Cooling Water Temperature (Normal/Maximum)oC27/33Security SystemEmergency Shut-off DeviceThe emergency shut-off device is a protective mechanism that prevents the rotor from exceeding the allowable rotational speed, installed on the main oil pump casing connected to the main shaft. The emergency shut-off device used in this unit is a centrifugal flyweight type, which has an eccentric weight mounted radially on the main oil pump casing. At normal rotational speeds, a spring force balances it. When the unit's speed exceeds the rated speed by 9-11%, the flyweight is thrown out, causing the emergency shut-off throttle to disengage and activate. CertificationsAfter Sales ServiceProvide guidance for equipment installation and commissioning; conduct technical training; during the warranty period, if the unit fails to operate normally or components are damaged due to quality defects, the Seller shall repair them free of charge.Warranty Period: One year.
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