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Where thrust bearing located in steam turbine?
The thrust pads will be there at the front or non drive end of the turbine side....These are usually used to limit the axial displacement of the rotor( Means to minimize the movement of rotor axially in order to maintain the axial clearance between the moving blades and the fixed blades of steam turbine rotor).....
What is balance piston line of Turbine?
it is used balance axial thrust on turbine rotor due to admitting of high pressure steam in to turbine. it basic purpose is to save thrust bearing.
What is tripping speed?
in a steam turbine, it is the speed at which the turbine should not go above. some time they call it overspeed trip. because the turbine rotor and berings are not design for such high speed and is not capable to handle this huge cenerfugal forces. usually there is two type of trip system: Electronic and Mechanical. some Steam Turbins have both protaction system.
What to do about turbine rotor differential expansion?
my LP turbine differential expansion increase ,when rated gland steam temperature maintain.
Why LP turbine rotor expansion is more than casing?
In a low-pressure (LP) turbine, the rotor expansion is greater than the casing due to the design and operational conditions of the turbine. The rotor experiences a significant drop in pressure and temperature as steam expands through the turbine stages, resulting in a larger volumetric increase compared to the casing, which is designed to contain the steam flow with minimal expansion. This difference allows for efficient energy extraction from the steam, optimizing the turbine's performance while maintaining structural integrity in the casing. Overall, the rotor's greater expansion accommodates the dynamic changes in steam properties as it moves through the turbine system.
What is positive axial displacement of steam turbine?
axial shift of a steam turbine is the shifting of turbine rotor in the forward and backward direction due to steam thrust on blades of rotor.
Where thrust bearing located in steam turbine?
The thrust pads will be there at the front or non drive end of the turbine side....These are usually used to limit the axial displacement of the rotor( Means to minimize the movement of rotor axially in order to maintain the axial clearance between the moving blades and the fixed blades of steam turbine rotor).....
What is balance piston line of Turbine?
it is used balance axial thrust on turbine rotor due to admitting of high pressure steam in to turbine. it basic purpose is to save thrust bearing.
What is use of thrust pad in steam turbine?
Thrust pads are used to protect the steam turbine rotor from damage due to axial displacement due to axial thrust created by entry of steam in the turbine. generaly the pads clearence is 0.45mm for a bearing size 250mm.
What is the purpose of fixing a dummy piston and cylinder in steam turbine rotor?
Dummy piston is provided to oppose the axial thrust generated (in the direction of steam) due to incoming steam.
How does a Ljungstrom steam turbine work and look like?
Ljungstrom Turbine is a Radial Outflow Steam Turbine with two counter rotating discs. Blades are mounted in circles one bigger than the other. Blades of one rotor work as nozzles for the other rotor blades. This turbine design is very forgiving on wet steam. It is said that the turbine design had limitations on scaling up above 30 MW and hence could not compete with Axial Flow Turbines.
What is the palindromic name of a revolving part of a turbine?
ROTOR ROTOR
What is tripping speed?
in a steam turbine, it is the speed at which the turbine should not go above. some time they call it overspeed trip. because the turbine rotor and berings are not design for such high speed and is not capable to handle this huge cenerfugal forces. usually there is two type of trip system: Electronic and Mechanical. some Steam Turbins have both protaction system.
Can Steam Turbine Thrust Bearing temperature protection device be considered a similar protection for the Steam Turbine Rotor Position protection device?
No these are two different sensors. The thrust bearing temperature trip device measures either the metal temperature of the bearing, or the oil temperature exiting the bearing, or both. If this temperature exceeds recommended temperatures by 10 to 15% the turbine will trip to avoid damaging the bearings or shaft. The rotor position sensor is a proximity cell that monitors the axial position of the turbine rotor, often there is four such sensors mounted at the end of the rotor, if the distance between the sensors and the rotors exceeds a specific distance ( often 15-30 mils) the sensors indicate a failure, if two or three sensors indicate failure the turbine will trip.
How long is a rotor blade of a wind turbine?
The length of a rotor blade on a wind turbine can vary depending on the turbine size and design. On average, rotor blades can range from 116 to 328 feet (35 to 100 meters) in length for utility-scale turbines.
What is tHe purpose of inlet guide vanes in gas turbine?
In axial flow compressors, the primary purpose of IGVs (fixed or variable) is to guide the airflow onto the first stage rotor blades at an appropriate or required angle of attack.
How many stages of steam turbine rotor?
It depends upon megawatt of turbine & design of blades.
