EP2630338A1 - Gas turbine plant for the production of electric energy, provided with an apparatus for monitoring rotating parts - Google Patents

Gas turbine plant for the production of electric energy, provided with an apparatus for monitoring rotating parts

Info

Publication number
EP2630338A1
EP2630338A1 EP11804794.3A EP11804794A EP2630338A1 EP 2630338 A1 EP2630338 A1 EP 2630338A1 EP 11804794 A EP11804794 A EP 11804794A EP 2630338 A1 EP2630338 A1 EP 2630338A1
Authority
EP
European Patent Office
Prior art keywords
tie rod
plant according
shaft
temperature sensors
rotating parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11804794.3A
Other languages
German (de)
French (fr)
Inventor
Matteo Avanzino
Laura Traversone
Francesco Malavasi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ansaldo Energia SpA
Original Assignee
Ansaldo Energia SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ansaldo Energia SpA filed Critical Ansaldo Energia SpA
Publication of EP2630338A1 publication Critical patent/EP2630338A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/02—Arrangement of sensing elements
    • F01D17/08—Arrangement of sensing elements responsive to condition of working-fluid, e.g. pressure
    • F01D17/085—Arrangement of sensing elements responsive to condition of working-fluid, e.g. pressure to temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/02—Arrangement of sensing elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/003—Arrangements for testing or measuring
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/04—Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies
    • G01K13/08—Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies in rotary movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/80—Diagnostics

Definitions

  • the present invention relates to a gas turbine plant for the production of electric energy, provided with an apparatus for monitoring rotating parts.
  • thermographic systems based on infrared sensors, which are housed in specially prepared sites in the turbine case and focusing on respective portions of the rotor.
  • the known systems have severe limitations, however, mainly due to the difficulty of placing many sensors and to the fact that temperature monitoring can be exclusively extended to portions of the rotor that are visualized by the sensors. Housing the sensors is problematic, since seats must be made within the case of the turbine.
  • the aim of the present invention is therefore to provide a gas turbine plant for the production of electric energy, which is free of the limitations described.
  • a gas turbine power plant for the production of electric energy is provided, as defined in claim 1.
  • FIG. 1 is a side view longitudinally partially sectioned of a turbogas unit of a plant for the production of electric energy according to an embodiment of the present invention
  • Figure 2 is a simplified block diagram relative to a temperature monitoring system incorporated in the plant of figure 1;
  • FIG. 3 is an enlarged three quarters perspective view from above of a first detail of the plant of figure 1;
  • FIG. 4 is an enlarged side view, longitudinally sectioned, of a second detail of the plant of figure 1;
  • FIG. 5 is an enlarged side view, longitudinally sectioned, of a second detail of the system of figure 1, in a different embodiment.
  • FIG. 6 is an enlarged side view, longitudinally sectioned, of a third detail of the plant of figure 1.
  • FIG. 1 shows a portion of a plant for the production of electric energy, indicated as a whole with reference number 1.
  • the plant 1 comprises a shaft 2, along which are arranged a compressor 3 and a gas turbine, hereinafter simply referred to as turbine 5.
  • a combustion chamber 6 of an annular type is arranged around the shaft 2, between the compressor 3 and the turbine 5.
  • the compressor 3, the combustion chamber 6 and the turbine 5 form a turbogas unit, which is housed in an external case 4.
  • the shaft 2 comprises a plurality of rotor discs 7, 8 arranged in a succession between a front hollow shaft 10 and a rear hollow shaft 11 and clamped by a central tie rod 12.
  • a central hollow shaft 13 separates the rotor discs 7 in the region of the compressor 3 from the discs 8 in the region of the turbine 5 and extends through the combustion chamber 6.
  • the rotor discs 7 and the rotor discs 8 present respective annular expansions 7a, 8a, which extend axially in opposite directions and are in contact with annular expansions 7a, 8a, of the adjacent rotor discs 7, 8.
  • pairs of adjacent rotor discs 7, 8 define rotor cavities 14 between the respective annular expansions 7a, 8a and the central shaft 12.
  • Each of the discs 7 carries a respective array of compressor blades 15 while the rotor discs 8 carry a respective array of turbine blades 16.
  • Damping rings 17 are arranged around the tie rod 12, between pairs of adjacent rotor discs 7, 8, in order to reduce bending stress and dampen vibrations of the tie rod connected to its own frequencies.
  • the plant 1 is provided with a temperature monitoring system 18, which comprises a processing station 19, a plurality of temperature sensors 20, 21 and a radio frequency coupling device 22.
  • the processing station 19 is configured to receive temperature signals ST from the temperature sensors 20, 21 and to carry out monitoring operations using the detected temperature signals ST.
  • the temperature sensors 20 are located on the surface of the tie rod 12 at respective axial positions.
  • the temperature sensors 20 are arranged both along the compressor 3, and along the cylinder 13, and along the turbine 5.
  • the temperature sensors 21 are arranged on the faces of respective rotor discs 7, 8 of the shaft 2. The temperature sensors 21 are thus within respective rotor cavities 14.
  • the temperature sensors 20, 21 are thermocouples. In a different embodiment, thermoresistive sensors are used.
  • the temperature sensors 20, 21 are fixed to the shaft 2 by welded metal strips 24 ( Figure 3) and are connected to a movable portion of the coupling device 22 (as described in more detail below, Figure 6; see also Figure 1) by way of respective electric connection lines 25, 26.
  • the electric connection lines 25 extend axially on the surface of the tie rod 12.
  • the electric connection lines 26 extend substantially in a radial direction on the rotor discs 7, 8, therefore running parallel to the electric connection lines 26 on the surface of the tie rod 12.
  • the electric connection lines 25, 26 are also secured by welded metal strips 24.
  • the metal strips 24 are of an elongated shape and are applied in a substantially perpendicular direction to the electric connection lines 25, 26 themselves.
  • the strips 24 are applied to the faces of the rotor discs 7, 8 in the tangential direction, i.e. perpendicular to a radial direction.
  • the strips 24 are applied in a circumferential direction. This arrangement of strips 24 minimizes the risk that possible micro-cracks formed during welding extend, damaging the structure of the shaft 2.
  • annular interspaces 29 Between the tie rod 12 and rotor discs 7, 8 are annular interspaces 29 (see Figures 4 and 5) , through which pass the electric connection lines 25, 26.
  • the damping rings 17 are instead in contact with the surface of the tie rod 12.
  • longitudinal grooves 28a for the passage of electric connection lines 25, 26 are made in the damping rings 17 on the face toward the surface of the tie rod 12.
  • the surface of the tie rod 12 is integral and continuous.
  • longitudinal grooves 28b are made on the surface of the tie rod 12, through regions occupied by the damping rings 17.
  • the coupling device 22 comprises a receiver 30, a transmitter 31 and a feeding device 32.
  • the receiver 30 is fixed and placed next to the processing station 19 and is connected to it for transferring temperature signals ST detected by the temperature sensors 20, 21 and transmitted in radio frequency by the transmitter 31.
  • the transmitter 31 is housed upon the shaft 2, more precisely on the head in a balancing cavity 34 of the front hollow shaft 10 and is connected to the electric connection lines 25, 26.
  • an oblique through hole 36 connects the surface of the tie rod 12 with the balancing cavity 34 where the transmitter 31 is arranged.
  • the electric connection lines 25, 26 run throughout the through hole 36.
  • the feeding device 32 comprises an inductive power supply 38, a transformer 39 and an AC/DC converter 40.
  • the transformer 39 has a primary winding 41, fixed to the outer case 4 and connected to inductive power supply 38, and a secondary winding 42, fixed to the shaft 2.
  • the primary winding 41 in particular, is composed of a torus fixed to the inside of the bearing support of the shaft 2 (in this regard see Figure 6) .
  • the described system advantageously enables monitoring of the temperature of the rotating parts of the plant 1 in a large number of positions.
  • the installation of temperature sensors 20, 21 and the necessary wiring does not appreciably alter the mechanical properties of the rotating parts of the plant, specifically of the rotor discs 7, 8 and of the tie rod 12. Above all, fatigue resistance and the number of cycles that the material of the shaft 2 can withstand are not altered.
  • the electric welding in particular, is carried out so as to mainly extend transversely to the radial direction (on the rotor discs 7, 8) and in the circumferential direction (on the tie rod 12) . Thanks to this provision, the propagation of micro-cracks is prevented and the structural integrity is preserved, as well as the fatigue strength of the material. In addition, the arrangement and size of the masses does not alter the balance of the shaft 2. It is therefore possible to install a relatively large number of temperature sensors 20,
  • thermographic thermographic
  • temperature sensors are not limited to the example described.
  • the temperature sensors can be placed also in other parts of the shaft of the turbogas unit, including at least the annular expansion of the discs, both on internal surfaces, towards the tie rod, and on external surfaces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

A gas turbine plant for the production of electric energy comprising a turbogas unit (2, 3, 5, 6) and a temperature monitoring system (18), configured to detect operative temperatures in a plurality of locations of rotating parts (2, 7, 8, 12) of the turbogas unit (2, 3, 5, 6). The temperature monitoring system (18) has a plurality of temperature sensors (20, 21) arranged on the rotating parts (2, 7, 8, 12) of the turbogas unit (2, 3, 5, 6). The rotating parts (2, 7, 8, 12) comprise a shaft (2) having a plurality of rotor discs (7, 8) clamped by a tie rod (12). At least some of the temperature sensors (20, 21) are housed in the rotor cavities (14) defined between the adjacent rotor discs (7, 8) and the tie rod (12).

Description

GAS TURBINE PLANT FOR THE PRODUCTION OF ELECTRIC ENERGY, PROVIDED WITH AN APPARATUS FOR MONITORING ROTATING PARTS
TECHNICAL FIELD
The present invention relates to a gas turbine plant for the production of electric energy, provided with an apparatus for monitoring rotating parts.
BACKGROUND ART
In plants for the production of electric energy, the rate of availability of gas turbines is of primary importance, both for the legislation governing the supply of energy, and for the increasingly stringent demands of the markets. In order to maximize the rate of availability, it is essential, firstly, to extend the useful life of all components of the turbine and, secondly, to reduce the number of maintenance procedures, which generally impose long periods of downtime. In addition, there is an obvious need for avoiding failure and sudden breakage . In particular, it is essential to monitor the status of all critical components of the rotor, i.e. those parts that are most prone to thermo-mechanical stress during normal operation of the plant and that, as a rule, can be subjected to detailed verification of structural integrity only when work is scheduled for revision, when the rotor is disassembled.
For reliable monitoring, distributed measurement systems should be provided, which allow to detect parameters relating to critical components in a large number of positions. In particular, given the high thermal stress to which rotating parts of gas turbines are submitted, a decisive parameter is the temperature. The temperature is usually detected by thermographic systems based on infrared sensors, which are housed in specially prepared sites in the turbine case and focusing on respective portions of the rotor. The known systems have severe limitations, however, mainly due to the difficulty of placing many sensors and to the fact that temperature monitoring can be exclusively extended to portions of the rotor that are visualized by the sensors. Housing the sensors is problematic, since seats must be made within the case of the turbine. In other words, it is necessary, for each sensor, to drill holes in the case and provide sufficient space for the sensor itself and the required wiring. Consequently, the number of monitoring points can not be large. In addition, only the surfaces in the viewing angle of the sensors, i.e. a relatively small portion of the outer surface of the rotor can be subjected to thermographic measurements .
DISCLOSURE OF INVENTION
The aim of the present invention is therefore to provide a gas turbine plant for the production of electric energy, which is free of the limitations described.
According to the present invention, a gas turbine power plant for the production of electric energy is provided, as defined in claim 1.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will now be described with reference to the annexed drawings, which illustrate a non limitative example of implementation, in which:
- Figure 1 is a side view longitudinally partially sectioned of a turbogas unit of a plant for the production of electric energy according to an embodiment of the present invention;
Figure 2 is a simplified block diagram relative to a temperature monitoring system incorporated in the plant of figure 1;
- Figure 3 is an enlarged three quarters perspective view from above of a first detail of the plant of figure 1;
- Figure 4 is an enlarged side view, longitudinally sectioned, of a second detail of the plant of figure 1;
- Figure 5 is an enlarged side view, longitudinally sectioned, of a second detail of the system of figure 1, in a different embodiment; and
- Figure 6 is an enlarged side view, longitudinally sectioned, of a third detail of the plant of figure 1.
BEST MODE FOR CARRYING OUT THE INVENTION
Figure 1 shows a portion of a plant for the production of electric energy, indicated as a whole with reference number 1. The plant 1 comprises a shaft 2, along which are arranged a compressor 3 and a gas turbine, hereinafter simply referred to as turbine 5. In addition, a combustion chamber 6 of an annular type is arranged around the shaft 2, between the compressor 3 and the turbine 5. The compressor 3, the combustion chamber 6 and the turbine 5 form a turbogas unit, which is housed in an external case 4.
The shaft 2 comprises a plurality of rotor discs 7, 8 arranged in a succession between a front hollow shaft 10 and a rear hollow shaft 11 and clamped by a central tie rod 12. A central hollow shaft 13 separates the rotor discs 7 in the region of the compressor 3 from the discs 8 in the region of the turbine 5 and extends through the combustion chamber 6. The rotor discs 7 and the rotor discs 8 present respective annular expansions 7a, 8a, which extend axially in opposite directions and are in contact with annular expansions 7a, 8a, of the adjacent rotor discs 7, 8. In addition, pairs of adjacent rotor discs 7, 8 define rotor cavities 14 between the respective annular expansions 7a, 8a and the central shaft 12.
Each of the discs 7 carries a respective array of compressor blades 15 while the rotor discs 8 carry a respective array of turbine blades 16.
Damping rings 17 are arranged around the tie rod 12, between pairs of adjacent rotor discs 7, 8, in order to reduce bending stress and dampen vibrations of the tie rod connected to its own frequencies. With reference to Figure 2, the plant 1 is provided with a temperature monitoring system 18, which comprises a processing station 19, a plurality of temperature sensors 20, 21 and a radio frequency coupling device 22.
The processing station 19 is configured to receive temperature signals ST from the temperature sensors 20, 21 and to carry out monitoring operations using the detected temperature signals ST.
As shown in Figures 1 and 3, the temperature sensors 20 are located on the surface of the tie rod 12 at respective axial positions. In particular, the temperature sensors 20 are arranged both along the compressor 3, and along the cylinder 13, and along the turbine 5.
The temperature sensors 21 are arranged on the faces of respective rotor discs 7, 8 of the shaft 2. The temperature sensors 21 are thus within respective rotor cavities 14.
In one embodiment, the temperature sensors 20, 21 are thermocouples. In a different embodiment, thermoresistive sensors are used.
The temperature sensors 20, 21 are fixed to the shaft 2 by welded metal strips 24 (Figure 3) and are connected to a movable portion of the coupling device 22 (as described in more detail below, Figure 6; see also Figure 1) by way of respective electric connection lines 25, 26.
As shown in Figures 1 and 3, the electric connection lines 25 extend axially on the surface of the tie rod 12. The electric connection lines 26 extend substantially in a radial direction on the rotor discs 7, 8, therefore running parallel to the electric connection lines 26 on the surface of the tie rod 12. The electric connection lines 25, 26 are also secured by welded metal strips 24. The metal strips 24 are of an elongated shape and are applied in a substantially perpendicular direction to the electric connection lines 25, 26 themselves. In particular, the strips 24 are applied to the faces of the rotor discs 7, 8 in the tangential direction, i.e. perpendicular to a radial direction. On the tie rod 12, the strips 24 are applied in a circumferential direction. This arrangement of strips 24 minimizes the risk that possible micro-cracks formed during welding extend, damaging the structure of the shaft 2.
Between the tie rod 12 and rotor discs 7, 8 are annular interspaces 29 (see Figures 4 and 5) , through which pass the electric connection lines 25, 26.
The damping rings 17 are instead in contact with the surface of the tie rod 12. In an embodiment (Figure 4), longitudinal grooves 28a for the passage of electric connection lines 25, 26 are made in the damping rings 17 on the face toward the surface of the tie rod 12. In this case, the surface of the tie rod 12 is integral and continuous.
In a different embodiment (Figure 5), longitudinal grooves 28b are made on the surface of the tie rod 12, through regions occupied by the damping rings 17. Referring once again to Figures 1 and 2, the coupling device 22 comprises a receiver 30, a transmitter 31 and a feeding device 32.
The receiver 30 is fixed and placed next to the processing station 19 and is connected to it for transferring temperature signals ST detected by the temperature sensors 20, 21 and transmitted in radio frequency by the transmitter 31.
As shown in Figure 6, the transmitter 31 is housed upon the shaft 2, more precisely on the head in a balancing cavity 34 of the front hollow shaft 10 and is connected to the electric connection lines 25, 26. In order to allow the connection, an oblique through hole 36 connects the surface of the tie rod 12 with the balancing cavity 34 where the transmitter 31 is arranged. The electric connection lines 25, 26 run throughout the through hole 36.
The feeding device 32 comprises an inductive power supply 38, a transformer 39 and an AC/DC converter 40. In turn, the transformer 39 has a primary winding 41, fixed to the outer case 4 and connected to inductive power supply 38, and a secondary winding 42, fixed to the shaft 2. The primary winding 41, in particular, is composed of a torus fixed to the inside of the bearing support of the shaft 2 (in this regard see Figure 6) .
The described system advantageously enables monitoring of the temperature of the rotating parts of the plant 1 in a large number of positions. The installation of temperature sensors 20, 21 and the necessary wiring, in fact, does not appreciably alter the mechanical properties of the rotating parts of the plant, specifically of the rotor discs 7, 8 and of the tie rod 12. Above all, fatigue resistance and the number of cycles that the material of the shaft 2 can withstand are not altered. The electric welding, in particular, is carried out so as to mainly extend transversely to the radial direction (on the rotor discs 7, 8) and in the circumferential direction (on the tie rod 12) . Thanks to this provision, the propagation of micro-cracks is prevented and the structural integrity is preserved, as well as the fatigue strength of the material. In addition, the arrangement and size of the masses does not alter the balance of the shaft 2. It is therefore possible to install a relatively large number of temperature sensors 20,
21, to perform an accurate and reliable monitoring of temperature distribution over a large part of the shaft 2. In addition the electric welding alters the surface area of the tie rod without undermining the structural integrity of the section of the component; furthermore the effect of temperature also involves in operation a tempering of the altered zone by electric welding. Another advantage is that monitoring can be done even on internal portions of the shaft 2, i.e. the central tie rod 12, the faces of the rotor discs 7, 8 and on the portions of the annular expansion 7a, 8a facing the tie rod 12. The interior surfaces of the shaft 2 are not visible from the outside of the shaft 2 and therefore are not accessible through remote sensing, such as thermographic sensors.
On the other hand, the use of sensors attached to the shaft 2 is compatible with measures of different types, in particular thermographic, which can be integrated in the same monitoring system for maximum flexibility and completeness.
It is finally clear that to the described method and plant modifications and variations can be made, without going beyond the scope of the present invention, as defined in the appended claims .
In particular, the placement of temperature sensors is not limited to the example described. The temperature sensors can be placed also in other parts of the shaft of the turbogas unit, including at least the annular expansion of the discs, both on internal surfaces, towards the tie rod, and on external surfaces.

Claims

1. Gas turbine plant for the production of electric energy, comprising :
a turbogas unit (2, 3, 5, 6) ;
a temperature monitoring system (18) configured to detect operative temperatures at a plurality of locations of rotating parts (2, 7, 8, 12) of the turbogas unit (2, 3, 5, 6) and comprising a plurality of temperature sensors (20, 21) arranged on the rotating parts (2, 7, 8, 12) of the turbogas unit (2, 3, 5, 6) ;
wherein the rotating parts (2, 7, 8, 12) comprise a shaft (2) having a plurality of rotor discs (7, 8) clamped by a tie rod (12) ;
and wherein rotor cavities (14) are defined between adjacent rotor discs (7, 8) and the tie rod (12);
characterized in that at least some of the temperature sensors (20, 21) are housed in the rotor cavities (14).
2. Plant according to claim 1, wherein at least one of the temperature sensors (20) is arranged on a surface of the tie rod (12) .
3. Plant according to claim 1 or 2, wherein at least one of the temperature sensors (20) is arranged on a face of one of the rotor discs (7, 8) .
4. Plant according to any one of the preceding claims, comprising, for each temperature sensor (20, 21) , a respective electric connection line (25, 26) and wherein the electric connection lines (25, 26) are arranged on the surface of the tie rod (12) and extend in an axial direction.
5. Plant according to claim 4, wherein the electric connection lines (25, 26) are fixed to the shaft (2) by welded metal strips (24) .
6. Plant according to claim 5, wherein the metal strips (24) are welded to the tie rod (12) and extend in a circumferential direction .
7. Plant according to claim 4 as appended to claim 3, wherein the metal strips (24) are welded to the face and extend perpendicularly to a radial direction.
8. Plant according to any one of claims 4 to 7, wherein:
the shaft (2) comprises damping rings (17) arranged between the discs (7, 8) and the tie rod (12);
the damping rings (17) have grooves (28a) on respective faces oriented toward the surface of the tie rod (12) ; and
the electric connection lines (25, 26) cross the damping rings (17) along the grooves (28a).
9. Plant according to any one of claims 4 to 7, wherein:
the shaft (2) comprises damping rings (17) arranged between the discs (7, 8) and the tie rod (12);
grooves (27b) are provided on the surface of the tie rod (12) , through regions occupied by the damping rings (17); and the electric connection lines (25, 26) cross the damping rings (17) along the grooves (27b).
10. Plant according to any of the preceding claims, comprising a processing station (19) coupled in radiofrequency with the temperature sensors (20, 21) for receiving temperature signals (ST) provided by the temperature sensors (20, 21) .
11. Plant according to claim 10, comprising a transmitter (31), arranged on the shaft (2) and coupled to the temperature sensors (20, 21) through wired connection, and a receiver (30) connected to the processing station (19) and communicably coupled with the transmitter (31) .
12. Plant according to claim 11, wherein the shaft (2) comprises a front hollow shaft (10), having balancing cavities (34), and the transmitter (31) is housed within one of the balancing cavities (34).
13. Plant according to claim 11 or 12, comprising a transformer (39), having a first winding (41), fixed to an external case (4) of the turbogas unit (2, 3, 5, 6) and connected to a power supply (38), and a second winding (42), fixed to the shaft (2) and coupled to the transmitter (31).
EP11804794.3A 2010-10-20 2011-10-20 Gas turbine plant for the production of electric energy, provided with an apparatus for monitoring rotating parts Withdrawn EP2630338A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001918A ITMI20101918A1 (en) 2010-10-20 2010-10-20 GAS TURBINE PLANT FOR THE PRODUCTION OF ELECTRIC ENERGY, EQUIPPED WITH AN EQUIPMENT FOR MONITORING OF ROTATING PARTS
PCT/IB2011/054702 WO2012052965A1 (en) 2010-10-20 2011-10-20 Gas turbine plant for the production of electric energy, provided with an apparatus for monitoring rotating parts

Publications (1)

Publication Number Publication Date
EP2630338A1 true EP2630338A1 (en) 2013-08-28

Family

ID=43738042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11804794.3A Withdrawn EP2630338A1 (en) 2010-10-20 2011-10-20 Gas turbine plant for the production of electric energy, provided with an apparatus for monitoring rotating parts

Country Status (3)

Country Link
EP (1) EP2630338A1 (en)
IT (1) ITMI20101918A1 (en)
WO (1) WO2012052965A1 (en)

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
EP2565605A1 (en) * 2011-08-29 2013-03-06 Siemens Aktiengesellschaft Flow engine with a temperature sensor in a part of the rotor
DE102013213115A1 (en) 2013-07-04 2015-01-22 Siemens Aktiengesellschaft Rotor for a turbine
EP2891770A1 (en) 2014-01-03 2015-07-08 Siemens Aktiengesellschaft Determination method and gas turbine

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GB1013928A (en) * 1962-04-27 1965-12-22 Glacier Co Ltd Apparatus for detecting when a cyclically moving part reaches a predetermined temperature
ES397424A1 (en) * 1970-12-31 1974-05-16 Westinghouse Electric Corp An apparatus for the detection of operating conditions of a rotary machine. (Machine-translation by Google Translate, not legally binding)
DE10054369B4 (en) * 2000-10-30 2007-06-28 Siemens Ag Arrangement for acquiring metrological data of a rotor of a rotating machine
US7572524B2 (en) * 2002-09-23 2009-08-11 Siemens Energy, Inc. Method of instrumenting a component
US7256695B2 (en) * 2002-09-23 2007-08-14 Microstrain, Inc. Remotely powered and remotely interrogated wireless digital sensor telemetry system
US20080240902A1 (en) * 2007-03-28 2008-10-02 General Electric Company Method and system for rub detection in a steam turbine
US8111161B2 (en) * 2009-02-27 2012-02-07 General Electric Company Methods, systems and/or apparatus relating to turbine blade monitoring

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Title
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Also Published As

Publication number Publication date
ITMI20101918A1 (en) 2012-04-21
WO2012052965A1 (en) 2012-04-26

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