公开(公告)号：EP0874950B1

公开(公告)日：2000-04-05

申请号：EP97914043.1

申请日：1997-01-08

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： ZÖRNER, Walter

IPC分类号： F01D21/00 ,  F01D21/04 ,  G01B11/14

CPC分类号： G01B11/14 ,  F01D11/08 ,  F01D21/04 ,  F05D2260/80

摘要： A radial gap (22, 22') produced between the turbine housing (8) and the turbine shaft (4) or between the turbine housing (8) and a turbine blade (6) is monitored when a turbine (2) is running. According to the invention, in order to ensure that the radial gap (22, 22') is measured constantly and accurately, a measuring reference point (18, 18') of non-oxidizing material is disposed on at least one turbine blade (6) and/or on the surface of the turbine shaft (4) in order to reflect light from a glass fibre probe (12, 12') which is guided through the turbine housing (8).

公开(公告)号：EP0770232A1

公开(公告)日：1997-05-02

申请号：EP95924174.0

申请日：1995-07-07

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： HILLERMEIER, Claus ,  HÖHFELD, Markus ,  GEBERT, Rudolf ,  GRÜHN, Michael ,  ZÖRNER, Walter

IPC分类号： G06F15 ,  G05B13 ,  G06N3 ,  H02J3

CPC分类号： G05B13/027

摘要： In the control of a power station with a number of blocks (25) in which each block (25) is controlled using at least one reference value (F), particularly favourable reference values (F) are to be reliably obtainable even considering the current state of the station. To this end, a guide system (1) for the power station comprises a computer unit (2) which provides reference values (F) for the block(s) (25) by means of a genetic algorithm and an optimisation module (6) connected to the computer unit (2). The optimisation module (6) is connected to a number of neuronal networks (32), one of which is allocated to each power station block (25).

公开(公告)号：EP0555294A1

公开(公告)日：1993-08-18

申请号：EP91918818.0

申请日：1991-10-25

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： DROSDZIOK, Armin ,  ZÖRNER, Walter

IPC分类号： F28B11 ,  G01K17

CPC分类号： F28B11/00 ,  G01K17/12

摘要： Un procédé permet de contrôler le fonctionnement d'un condenseur (1) ayant une chambre à vapeur (2) traversée par la vapeur à condenser et au moins un agencement situé dans la chambre à vapeur (2) avec une pluralité de tubes (3, 4) traversés par un fluide de refroidissement qui s'écoule entre leur extrémité d'admission (5) et leur extrémité de sortie (6). La pression et/ou la température de la vapeur sont mesurées à au moins un point de mesure (19) dans la chambre à vapeur (2). En outre, on mesure la température d'admission du fluide de refroidissement à l'extrémité d'admission, la température de sortie du fluide de refroidissement à l'extrémité de sortie (6) et le débit massique de fluide de refroidissement de chaque tube sélectionné (4). On évalue les valeurs de mesure afin de déterminer le coefficient de transmission de chaleur de chaque tube sélectionné et on évalue les coefficients de transmission de chaleur ainsi déterminés à des fins de diagnostic. En particulier, un signal est donné lorsqu'au moins un coefficient de chaleur dévie essentiellement d'une valeur de consigne prédéterminée.

公开(公告)号：EP0847482A1

公开(公告)日：1998-06-17

申请号：EP96934354.0

申请日：1996-08-12

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： ZÖRNER, Walter

IPC分类号： F01D9 ,  F01D19 ,  F01D21 ,  F01D25 ,  F01K13

CPC分类号： F01K13/025 ,  F01D19/02 ,  F01D21/00 ,  F01D21/06 ,  F01D25/12 ,  F05D2240/10 ,  F05D2260/97

摘要： The invention concerns a method of cooling the low-pressure stage of a steam turbine (1) connected into a water/steam loop (12). Coolant (K') flow through parts (24) of the low-pressure stage (2), particularly when idling. In order to ensure particularly effective cooling and to be able also to make use of the heat thus obtained, the condensate (K) from a condensor (4) connected downstream from the steam turbine (1) is used as the coolant (K'), the condensate giving up the heat absorbed during the cooling process to the water/steam loop (12). To this end, the low-pressure stage is connected to a coolant line (22, 22') which is connected to the outlet end of the condensor (4) and which includes a heat exchanger (16, 16') connected into the water/steam loop (12).

公开(公告)号：EP0555294B1

公开(公告)日：1994-08-03

申请号：EP91918818.5

申请日：1991-10-25

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： DROSDZIOK, Armin ,  ZÖRNER, Walter

IPC分类号： F28B11/00 ,  G01K17/12

CPC分类号： F28B11/00 ,  G01K17/12

摘要： The invention concerns the operational monitoring of a condenser (1) with a vapour chamber (2) through which the vapour to be condensed flows and of at least one of an arrangement with a plurality of tubes (3, 4) in the vapour chamber (2) through which a cooling fluid passes from an inlet (5) to an outlet end (6). According to the invention, the vapour pressure and/or temperature is measured at at least one measuring point (19) in the vapour chamber (2). In addition, the inlet temperature of the cooling fluid at the inlet end (5), the outlet temperature of the cooling fluid at the outlet end (6) and the cooling fluid flow rate are measured at each selected tube (4). The measurements are evaluated to determine the heat flow coefficient of each selected tube (4) and the coefficients thus determined are assessed for diagnostic purposes. In particular, a signal is given when at least one heat flow coefficient differs substantially from a predetermined setting.

公开(公告)号：EP0874950A2

公开(公告)日：1998-11-04

申请号：EP97914043.0

申请日：1997-01-08

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： ZÖRNER, Walter

IPC分类号： G01B11 ,  F01D11 ,  F01D21

CPC分类号： G01B11/14 ,  F01D11/08 ,  F01D21/04 ,  F05D2260/80

摘要： A radial gap (22, 22') produced between the turbine housing (8) and the turbine shaft (4) or between the turbine housing (8) and a turbine blade (6) is monitored when a turbine (2) is running. According to the invention, in order to ensure that the radial gap (22, 22') is measured constantly and accurately, a measuring reference point (18, 18') of non-oxidizing material is disposed on at least one turbine blade (6) and/or on the surface of the turbine shaft (4) in order to reflect light from a glass fibre probe (12, 12') which is guided through the turbine housing (8).

公开(公告)号：EP0599863A1

公开(公告)日：1994-06-08

申请号：EP92915438.0

申请日：1992-07-24

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： ZÖRNER, Walter

IPC分类号： G01H17 ,  G01M99 ,  G01N29

CPC分类号： G01N29/14 ,  G01N29/26

摘要： Pour la détection et la localisation précoces d'un changement sur un élément (6, 10, 30, 34, 36) de turbine (2), en particulier sur une aube de turbine (6, 10), en cas d'écart par rapport à la valeur normalisée d'au moins une valeur mesurée déterminée pendant le fonctionnement de la turbine (2), un spectre acoustique généré par l'élément (6, 10) est détecté à l'intérieur de la turbine et comparé avec un spectre de référence. Pour l'augmentation de l'intensité des signaux dans le spectre acoustique, les éléments (6, 10) de la turbine (2), de préférence les aubes mobiles (6), sont stimulés de l'extérieur pour l'émission acoustique (test de résonance). Un dispositif présentant pour la réception de paramètres de service de la turbine (2) un certain nombre de capteurs (12, 20, 24, 28, 67) reliés à un dispositif (16) pour le traitement des valeurs mesurées, comporte, pour la détection et la localisation de changements, une sonde (40) insérable depuis l'extérieur à l'intérieur de la turbine (2) pour la détection acoustique, ladite sonde étant reliée au dispositif (16).

公开(公告)号：EP0847482B1

公开(公告)日：2001-10-31

申请号：EP96934354.0

申请日：1996-08-12

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： ZÖRNER, Walter

IPC分类号： F01D25/12 ,  F01D21/00 ,  F01D19/02 ,  F01K13/02

CPC分类号： F01K13/025 ,  F01D19/02 ,  F01D21/00 ,  F01D21/06 ,  F01D25/12 ,  F05D2240/10 ,  F05D2260/97

摘要： The invention concerns a method of cooling the low-pressure stage of a steam turbine (1) connected into a water/steam loop (12). Coolant (K') flow through parts (24) of the low-pressure stage (2), particularly when idling. In order to ensure particularly effective cooling and to be able also to make use of the heat thus obtained, the condensate (K) from a condensor (4) connected downstream from the steam turbine (1) is used as the coolant (K'), the condensate giving up the heat absorbed during the cooling process to the water/steam loop (12). To this end, the low-pressure stage is connected to a coolant line (22, 22') which is connected to the outlet end of the condensor (4) and which includes a heat exchanger (16, 16') connected into the water/steam loop (12).

公开(公告)号：EP0770232B1

公开(公告)日：1998-03-25

申请号：EP95924174.6

申请日：1995-07-07

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： HILLERMEIER, Claus ,  HÖHFELD, Markus ,  GEBERT, Rudolf ,  GRÜHN, Michael ,  ZÖRNER, Walter

IPC分类号： G05B13/02

CPC分类号： G05B13/027

摘要： In the control of a power station with a number of blocks (25) in which each block (25) is controlled using at least one reference value (F), particularly favourable reference values (F) are to be reliably obtainable even considering the current state of the station. To this end, a guide system (1) for the power station comprises a computer unit (2) which provides reference values (F) for the block(s) (25) by means of a genetic algorithm and an optimisation module (6) connected to the computer unit (2). The optimisation module (6) is connected to a number of neuronal networks (32), one of which is allocated to each power station block (25).

公开(公告)号：EP0599863B1

公开(公告)日：1996-09-18

申请号：EP92915438.3

申请日：1992-07-24

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： ZÖRNER, Walter

IPC分类号： G01N29/14 ,  G01N29/26

CPC分类号： G01N29/14 ,  G01N29/26

摘要： To ensure the early detection and location of any change in a component (6, 10, 30, 34, 36) of a turbine (2), in particular in a turbine blade (6, 10), the invention calls for at least one parameter to be monitored during operation of the turbine (2) and, if the measured value of the parameter deviates from a reference value, the acoustic spectrum generated by the component (6, 10) is determined inside the turbine (2) and compared with a reference spectrum. In order to increase the intensity of the signals in the acoustic spectrum, the turbine components (6, 10), preferably the rotating blades (6), are stimulated externally to emit sound (resonance test). In order to enable the operational parameters of the turbine (2) to be determined, the invention also calls for a device with a number of sensors (12, 20, 24, 28, 67) which are connected to a measurement-processing unit (16), the device including, for the purpose of detecting and locating changes, a probe (40), connected to the measurement-processing unit (16), which can be inserted inside the turbine (2) from the outside to make acoustic measurements.