Monitoring and control device for rotating machine, rotating machine equipment, monitoring and control method for rotating machine, and monitoring and control program for rotating machine
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsKatsuhisa Hamada, Makoto Kondo, Takumi Matsumura
Life of this patent
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Abstract
A monitoring and control device for monitoring or controlling the clearance of a rotating machine including a vehicle cabin containing rotating and stationary parts comprises: an acquisition unit configured to acquire a plurality of temperatures at a plurality of locations in the vehicle cabin; and an index calculation unit configured to calculate an index indicating the vertical displacement of the vehicle cabin on the basis of the plurality of temperatures.
Claims13
A monitoring and control device for a rotating machine, the monitoring and control device being for monitoring or controlling a clearance of a rotating machine including a vehicle cabin that accommodates a rotating part and a stationary part, the monitoring and control device comprising:
- an acquisition unit including a processor and configured to acquire a plurality of temperatures at a plurality of positions of the vehicle cabin;
- and
- an index calculation unit including a processor and configured to calculate an index indicating a displacement of the vehicle cabin in an up-down direction based on the plurality of temperatures;
- wherein the vehicle cabin includes an upper-half portion having an upper flange and an upper shell, and a lower-half portion having a lower flange fastened to the upper flange and a lower shell, and
- wherein the index calculation unit is configured to calculate the index including a linear combination of at least two of a first term related to a temperature difference between the upper shell and the lower shell, a second term related to a temperature difference between a shell portion including the upper shell or the lower shell and a flange portion including the upper flange or the lower flange, a third term related to a temperature difference between the upper flange and the lower flange, a fourth term related to a thermal elongation amount of a vehicle cabin support table on which a protrusion portion protruding in an axial direction is placed, a fifth term related to a displacement of the rotating part of the rotating machine in an up-down direction, and a sixth term related to an output of the rotating machine.
A monitoring and control method for a rotating machine, the monitoring and control method being for monitoring or controlling a clearance of a rotating machine including a vehicle cabin that accommodates a rotating part and a stationary part, the monitoring and control method comprising:
- a step of acquiring a plurality of temperatures at a plurality of positions of the vehicle cabin;
- and
- a step of calculating an index indicating a displacement of the vehicle cabin in an up-down direction based on the plurality of temperatures,
- wherein the vehicle cabin includes an upper-half portion having an upper flange and an upper shell, and a lower-half portion having a lower flange fastened to the upper flange and a lower shell, and
- wherein the step of calculating the index comprises calculating the index including a linear combination of at least two of a first term related to a temperature difference between the upper shell and the lower shell, a second term related to a temperature difference between a shell portion including the upper shell or the lower shell and a flange portion including the upper flange or the lower flange, a third term related to a temperature difference between the upper flange and the lower flange, a fourth term related to a thermal elongation amount of a vehicle cabin support table on which a protrusion portion protruding in an axial direction is placed, a fifth term related to a displacement of the rotating part of the rotating machine in an up-down direction, and a sixth term related to an output of the rotating machine.
A monitoring and control program for a rotating machine, the monitoring and control program being for monitoring or controlling a clearance of a rotating machine including a vehicle cabin that accommodates a rotating part and a stationary part, the monitoring and control program causing a computer including a processor to execute:
- a procedure of acquiring a plurality of temperatures at a plurality of positions of the vehicle cabin;
- and
- a procedure of calculating an index indicating a displacement of the vehicle cabin in an up-down direction based on the plurality of temperatures,
- wherein the vehicle cabin includes an upper-half portion having an upper flange and an upper shell, and a lower-half portion having a lower flange fastened to the upper flange and a lower shell, and
- wherein the procedure of calculating the index comprises calculating the index including a linear combination of at least two of a first term related to a temperature difference between the upper shell and the lower shell, a second term related to a temperature difference between a shell portion including the upper shell or the lower shell and a flange portion including the upper flange or the lower flange, a third term related to a temperature difference between the upper flange and the lower flange, a fourth term related to a thermal elongation amount of a vehicle cabin support table on which a protrusion portion protruding in an axial direction is placed, a fifth term related to a displacement of the rotating part of the rotating machine in an up-down direction, and a sixth term related to an output of the rotating machine.
Dependencies are inferred from the claim text.