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Single Stage Turbines
Single Stage Turbines
IB Turbo Pvt Ltd offers Single Stage Turbines. Constructional Features BT 4 / 6 Turbines: Economic and Userfriendly turbine, Suitable for constant Steam Back Pressure even on Variable Steam Loads, Horizontally Split Casing, Separate Gearbox from Turbine, Replaceable Blades and Nozzles, Multi Arc Steam Admission, Advanced PLC Based and Stand alone Control Panel, Robust and Sturdy turbine for continuous operation.
- The turbine casing of this Single Stage turbine is split on horizontal centre-line to facilitate easy inspection and removal of rotor without disturbing lower half of casing or steam pipelines. The bottom-half of the cylinder is secured at the exhaust end by centre-line support mounted on the exhaust end stool. The Steam chest, SE / EE bearing pedestals and all governor gears are fitted on the bottom half turbine cylinder which enable the top half of turbine cylinder to be removed without disturbing the steam pipe work. Centre line support assists the precise alignment of turbine with the driven machine, and the axial thermal expansion of the turbine is accommodated by a flexible support at the steam end of the turbine.
- The rotor is a BUILT UP TYPE using alloy steel forging to be of stiff design i.e. first critical speed is well above any operating speed or over-speeds. The soundness of rotor is ensured using latest Ultrasonic testing techniques. The blades are made of alloy steel. Each blade is machined in one piece with its spacer root and is fixed in the grooves on periphery of the wheel. The outer ends of blades are connected by short lengths of shrouds riveted on. Each rotor is dynamically balanced to high degree of accuracy. This ensures the trouble free and smooth operation of rotor and a long life of bearings. The thrust bearing and emergency over-speed governor are provided on the non-drive end of the rotor shaft.
- One hand-operated valve is fitted on the nozzle box to control the additional nozzles for higher loads or as a safeguard against low boiler steam pressure.
- It is a self-contained hydraulic unit of reputed make driven from the turbine rotor shaft through a set of gears.
- These are segmental carbon ring types with three segments per ring. Each ring is held together with a spring.
- The turbine bearings adjacent to the steam glands are provided with oil baffles to prevent leakage of lubricating oil from the bearing housing. Also in association with the throwers on the rotor shaft, these oil baffles discourage any steam from entering the bearing housings and contaminating the oil thus keeping the oil free from water.
- To give warning of excessive exhaust steam pressure, an exhaust warning valve is provided. This is a simple spring-loaded valve located on the top of the exhaust casing of the turbine. The valve is set to exhaust at a steam pressure above by 10% from the normal exhaust pressure.
Products from IB Turbo Private Limited
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Multistage Back Pressure Turbines
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Versatile Machining Capability Through Ram Type Milling & Grinding Heads
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