A steam turbine oil’s most important functions are to: Lubricate bearings, both journal and thrust. Depending on the type of installation, this also may include the hydraulic control system, oil TURBINE OILING SYSTEM. OIL SUPPLY; A single oil supply line lubricates and cools the bearing, governs the m/c and operates the hydraulic actuators and safety and protective devices. During start-up & shut-down, aux oil pump supplies the control oil. Once the turbine speed is more than 2850 rpm, the main oil pump (M.O.P) takes over. The turbine can have control valves on the HP inlet only in which case the extraction flow is not controlled and flow as well as pressure in the extraction header can vary. However if it is important to control the flow in the extraction header, the turbine shall have two valves, Steam Turbine Lube Oil and Control Oil System - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. This is a short description about Steam turbine generator lube oil system. Steam turbine governing is the procedure of controlling the flow rate of steam to a steam turbine so as to maintain its speed of rotation as constant. The variation in load during the operation of a steam turbine can have a significant impact on its performance.
hydraulic oil flow from a hydraulic servo valve system which determines the position of the turbine control actuators. This is a PID controller. Examples of Control of lube oil pressure and temperature, as well as rotor axial displacement and eccentricity is necessary. The turning gear can be switched on only when all Significantly smaller oil volumes with increased performance of the turbines and the use of an oil circuit in coupled gas and steam turbine plants (combined cycle)
Computerized control systems were developed for preventive maintenance of turbine oil. These data include, the systematically accumulated service information Lube oil pumping skids support turbine. ❑ Lubricate bearings along shaft. ❑ Prevent metal-to-metal contact. ❑ Help operate control valves. ➢ Uncontrolled This lubricating oil serves more than one purpose since it is also the control oil for operating the turbine governor valves and steam admission valves. Therefore The control-oil line serviced a 37.5-MW steam turbine driving an AC generator. The fire was further fed by the oil that continued to flow, then spread to nearby pre-turbine gate valves;; automated control systems of hydraulic turbines;; excitation systems and start-up frequency converters. Service support. Woodward Governos & Controls, Gas and Steam Turbine Control & Valves. accurately controls oil pressure to precisely position single-acting steam turbine
2 Mar 2015 The separate lube oil system provides continuous lubrication to the bearings. Main oil tank level, header pressure monitoring, lube oil coolers and. What are phosphate ester electro-hydraulic control (EHC) Fluids? While the viscosities might be like those for mineral oil-based steam turbine lube oil, they 25 Feb 2016 Due to the high cost and the environmental problems that changing the oil in turbines entails, in recent years there has been an increase in the
Hydraulic closed-loop control devices have a long tradition of use in turbine construc- tion and are certainly one of the “pioneers” of oil-hydraulic closed-loop 2 Mar 2015 The separate lube oil system provides continuous lubrication to the bearings. Main oil tank level, header pressure monitoring, lube oil coolers and. What are phosphate ester electro-hydraulic control (EHC) Fluids? While the viscosities might be like those for mineral oil-based steam turbine lube oil, they 25 Feb 2016 Due to the high cost and the environmental problems that changing the oil in turbines entails, in recent years there has been an increase in the Its main uses are in steam turbine control systems in conventional thermal power plants and as a lubricant in gas turbines in nuclear power plants near heat The lube oil system is designed to provide pressurized lubrication and cooling to gas turbines and other industrial equipment. Typically, these systems include GE Triveni (GETL) offers a portfolio of steam turbine products from 30.1MW to Steam turbine and its control system; Gear box; Alternator; Lubricating oil system.