Abstract: Provided is a thrust bearing assembly including a casing, a supporting ring positioned within said casing, a leverage mechanism housed within said casing, tilting pads for contacting rotor, supporting discs connecting said leverage mechanism with said tilting pads via openings in said casing, wherein the leverage mechanism includes a plurality of first levering plates and an equal number of second levering plates, the first and second levering plates forming an endless overlapping arrangement within said casing, each first levering plate touching at contact surfaces two second levering plates and vice versa, wherein the levering plates are preferably substantially arcuate-shaped, and wherein at least all first levering plates or at least all second levering plates are tiltingly positioned on supporting pins, whereas the levering plate includes a recess with a ball-shaped protrusion within the recess, and the supporting pin includes a ball-shaped socket fitting the ball-shaped protrusion of the levering plate.

Abstract: Provided is a thrust bearing assembly including a casing, a supporting ring positioned within said casing, a leverage mechanism housed within said casing, tilting pads for contacting rotor, supporting discs connecting said leverage mechanism with said tilting pads via openings in said casing, wherein the leverage mechanism includes a plurality of first levering plates and an equal number of second levering plates, the first and second levering plates forming an endless overlapping arrangement within said casing, each first levering plate touching at contact surfaces two second levering plates and vice versa, wherein the levering plates are preferably substantially arcuate-shaped, and wherein at least all first levering plates or at least all second levering plates are tiltingly positioned on supporting pins, whereas the levering plate includes a recess with a ball-shaped protrusion within the recess, and the supporting pin includes a ball-shaped socket fitting the ball-shaped protrusion of the levering plate.

Abstract: The rotor of the turbine is monitored by sensors of the rotor vibrations arranged in at least one plane of measuring perpendicular to the axis of the rotor and by sensors of the absolute vibrations of the bearings. When using this method of processing, synchronically digitalized signals of the sensors of rotor vibrations, first the arithmetic mean of the individual harmonic bands in full spectrum in the frequency domain is calculated, by which means the information about the subharmonic components and their multiples in the full spectrum of these signals is transferred into the frequency band ?1X to 1X, at the same time is by the calculation of the median estimated the level of the signal noise, with which individual frequency bands of the full spectrum are encumbered, and which is subtracted from the amplitudes in the individual frequency bands of full spectrum of the signals of the sensors.

Abstract: A segmented retractable seal is provided in a stator of a turbine by which a rotor seal is arranged radially and axially movably in a groove formed in the stator of the turbine and is connected with a mechanism which retracts it away from the rotor of the turbine in a radial direction. The groove formed in the stator of the turbine contains an outer partial groove formed on the inner surface of the stator and an inner partial groove formed in the body of the stator and connected with it, its width being smaller than or equal to that of the outer partial groove. A head of the seal is arranged in the inner partial groove, and a comb of the seal is arranged in the outer partial groove. The head of the seal and the comb of the seal are connected by a neck of the seal.

Abstract: A method is provided for determining current eccentricity of a rotating rotor which is equipped with a phase marker scanned at constant speed of rotation up to 500 rpm by a sensor of a phase marker at the point of the phase marker, and outside of the phase marker by at least one sensor of relative rotor vibrations, while after digitizing the signals of the sensors, estimates current position of the phasor of the 1st harmonic component of signal of the sensor of relative rotor vibrations in the complex plane, which is subsequently compared to a reference position of the phasor of the 1st harmonic component, which has been determined in advance, whereas the variation vector of the phasors is an image of eccentricity of the rotor. Further, a method of diagnostics of eccentricity of a rotating rotor is based on this method for determining current eccentricity.

Abstract: A segmented retractable seal is provided in a stator of a turbine by which a rotor seal is arranged radially and axially movably in a groove formed in the stator of the turbine and is connected with a mechanism which retracts it away from the rotor of the turbine in a radial direction. The groove formed in the stator of the turbine contains an outer partial groove formed on the inner surface of the stator and an inner partial groove formed in the body of the stator and connected with it, its width being smaller than or equal to that of the outer partial groove. A head of the seal is arranged in the inner partial groove, and a comb of the seal is arranged in the outer partial groove. The head of the seal and the comb of the seal are connected by a neck of the seal.

Abstract: The invention relates to a method for determining current eccentricity of rotating rotor (1) at which is rotor (1) equipped with a phase marker (5) scanned at constant speed of rotation up to 500 rpm by a sensor (50) of phase marker (5) at the point of the phase marker (5), and outside of the phase marker (5) by at least one sensor (3, 30, 4, 40) of relative rotor vibrations, while after digitizing the signals of the sensors (3, 30, 4, 40, 50), is from them estimated current position of phasor of the 1st harmonic component of signal of the sensor (3, 30, 4, 40) of relative rotor vibrations in the complex plane, which is subsequently compared to a reference position of the phasor of the 1st harmonic component of this signal, which has been determined in advance, whereas the variation vector of the phasors is an image of eccentricity of the rotor (1). Further on, is the invention related to a method of diagnostics of eccentricity of rotating rotor (1) based on this method for determining current eccentricity.

Abstract: The rotor of the turbine is monitored by sensors of the rotor vibrations arranged in at least one plane of measuring perpendicular to the axis of the rotor and by sensors of the absolute vibrations of the bearings. When using this method of processing, synchronically digitalized signals of the sensors of rotor vibrations, first the arithmetic mean of the individual harmonic bands in full spectrum in the frequency domain is calculated, by which means the information about the subharmonic components and their multiples in the full spectrum of these signals is transferred into the frequency band ?1X to 1X, at the same time is by the calculation of the median estimated the level of the signal noise, with which individual frequency bands of the full spectrum are encumbered, and which is subtracted from the amplitudes in the individual frequency bands of full spectrum of the signals of the sensors.