Methods and systems for operating rotary machines
First Claim
1. A method for operating a rotary machine including a stationary member and a rotatable member, wherein the rotatable member rotates at least partially within the stationary member, said method comprising:
- determining an off-normal operating condition of the rotary machine that facilitates undesirable contact between the rotatable member and the stationary member;
monitoring a parameter associated with the off-normal operating condition; and
preventing operation of the rotary machine while the monitored parameter is within a predetermined range.
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Accused Products
Abstract
A method for operating a rotary machine is provided. The rotary machine includes a stationary member and a rotatable member wherein the rotatable member is configured to rotate at least partially within the stationary member. The method includes determining an off-normal operating condition of the rotary machine facilitating undesirable contact between the rotatable member and the stationary member, monitoring a parameter associated with the off-normal operating condition, and preventing operation of the rotary machine while the monitored parameter is within a predetermined range.
25 Citations
44 Claims
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1. A method for operating a rotary machine including a stationary member and a rotatable member, wherein the rotatable member rotates at least partially within the stationary member, said method comprising:
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determining an off-normal operating condition of the rotary machine that facilitates undesirable contact between the rotatable member and the stationary member;
monitoring a parameter associated with the off-normal operating condition; and
preventing operation of the rotary machine while the monitored parameter is within a predetermined range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A control system to facilitate optimizing turbine startup procedures for a turbine that includes a turbine shell and a rotor that is configured to rotate about a longitudinal axis at least partially within the shell;
- said control system comprising;
a plurality of process sensors that are configured to monitor an off-normal operating condition of the turbine a database for storing turbine design data relating to clearances defined between the rotor and the shell; and
a processor comprising a memory storing a plurality of analytical tools, said processor configured to be coupled to said plurality of process sensors and said database, said processor further configured to;
determine an off-normal operating condition of the rotary machine wherein the off-normal operating condition facilitates undesirable contact between the rotatable member and the stationary member;
monitor a parameter associated with the off-normal operating condition; and
at least one of prevent operation of the rotary machine while the monitored parameter is within a predetermined range, limit the rotary machine output to facilitate maintaining the monitored parameter is within the predetermined range, and reduce the rotary machine output to facilitate maintaining the monitored parameter is within the predetermined range. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
- said control system comprising;
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31. A computer program embodied on a computer readable medium for monitoring a plant, the plant having a plurality of equipment cooperating to supply steam to a steam driven rotary machine, said rotary machine comprising a stationary member and a rotatable member that is configured to rotate at least partially within the stationary member, said program comprising a code segment that controls a computer that receives a plurality of process parameters from sensors operatively coupled to the equipment and then:
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determines an off-normal operating condition of the rotary machine wherein said off-normal operating condition facilitates undesirable contact between the rotatable member and the stationary member;
monitors a parameter associated with the off-normal operating condition; and
prevents operation of the rotary machine while the monitored parameter is within a predetermined range. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification