Method and apparatus for determination of the life consumption of individual components in a fossil fuelled power generating installation, in particular in a gas and steam turbine installation

• US 8,090,545 B2
• Filed: 09/21/2006
• Issued: 01/03/2012
• Est. Priority Date: 10/17/2005
• Status: Expired due to Fees

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Gobrecht, Edwin, Newald, Rainer, Windecker, Eva
• Primary Examiner(s): Nghiem, Michael
• Assistant Examiner(s): LE, TOAN M
• Application Number:
  US12/083,666
• Publication Number:
  US 20090138211A1
• Time in Patent Office: 1,930 Days
• Field of Search: 702/34, 702/33, 702/44, 702/50, 702/55, 702/79, 702/81, 702/84, 702 98-100, 702/105, 702/127, 702130-131, 702137-140, 702/142, 702/145, 702147-148, 702/179, 702182-183, 702/189, 703/7, 703/9, 703/18, 73/11.6, 73 127- 128, 73/13.5, 73/15.7, 73/37, 7311201-11206, 700108-109, 700/275, 700286-287, 700290-291, 700/296, 701 99-100, 60/391.3, 60/394.5, 60/396.4, 60/391.82, 602/04, 60772-773, 608/05
• US Class Current: 702/34
• CPC Class Codes: F01K 13/00 General layout or general methods of operation of complete plants
• CPC Class Codes: F01K 23/101 Regulating means specially adapted therefor F01K23/105, F01K23/108 take precedence
• CPC Class Codes: G07C 3/00 Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
• CPC Class Codes: Y02E 20/16 Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]

Abstract

A method for prior determination of a life consumption of individual components in a fossil-fuelled power generating installation, with respect to a load cycling process to be carried out is provided. An apparatus is also provided for prior determination of a life consumption of individual components in a fossil-fuelled power generating installation, with respect to a load cycling process to be carried out. Actual variables which characterize the state of the power generating installation before a load cycling process are determined. A driving gear of the power generating installation which creates the load cycling process is set in advance. The load cycle time is calculated based upon the driving gear and the characterizing variables. A predicted life consumption for at least one of the individual components for the selected driving gear is also calculated.

Claims

1. A method for prior determination of a life consumption of individual components in a fossil-fuelled power generating installation, with respect to a load cycling process to be carried out, comprising:

determining actual variables, using an automation system, which characterize a state of the power generating installation before performing a load cycling process in the power generating installation;

selecting a driving gear from a plurality of driving gears of the power generating installation;

setting in advance a selected driving gear of the power generating installation by an input unit which creates the load cycling process;

calculating the load cycle time based upon the driving gear and the characterizing variables using a computer unit; and

calculating a predicted life consumption for at least one of the individual components for the selected driving gear using the computer unit and a life monitoring system.

2. The method as claimed in claim 1, wherein a desired load cycle time and a desired intended time are entered rather than the selected driving gear.

3. The method as claimed in claim 1, wherein actual component temperatures are at least a part of the characterizing variables.

4. The method as claimed in claim 1, wherein actual system pressures are at least a part of the characterizing variables.

5. The method as claimed in claim 1, wherein a starting process is carried out by the load cycle.

6. The method as claimed in claim 1, wherein a stopping process is carried out by the load cycle.

7. The method as claimed in claim 1, wherein the load cycle time is calculated based upon a simulation.

8. The method as claimed in claim 1, wherein the life consumption of individual components is controlled by calculating the expected life consumption.

9. The method as claimed in claim 1, further comprising using the method for a power generating installation, wherein the power generating installation has at least one of the items selected from the group consisting of a gas turbine, a waste-heat steam generator, a steam turbine, a boiler, a generator and a transformer.

10. The method as claimed in claim 1, further comprising using the method for a gas turbine, a steam turbine or a gas and steam turbine installation.

11. The method as claimed in claim 1, wherein the expected load cycle time is calculated based upon the desired life consumption of the individual components based upon the load cycle, and wherein the driving gear is adjusted based upon an input of the desired life consumption of the individual components on the basis of the load cycles.

12. An apparatus for prior determination of a life consumption of individual components in a fossil-fuelled power generating installation, with respect to a load cycling process to be carried out, comprising:

an automation system to determine actual variables which characterize a state of the power generating installation before performing a load cycling process in the power generating installation, wherein the automation system is configured to select a driving gear from a plurality of driving gears of the power generating installation;

wherein the automation system has an input for a selected driving gear;

a computer unit connected to the automation system for a data interchange; and

a life monitoring system connected to the computer unit for data interchange, such that a predicted life consumption is calculated for at least one of the individual components for the selected driving gear.

13. The apparatus as claimed in claim 12, wherein the characterizing variables comprise at least one component temperature of some of the components in a fossil-fuelled power generating installation.

14. The apparatus as claimed in claim 12, wherein the characterizing variables comprise at least one system pressure of the pressures which occur in a fossil-fuelled power generating installation.

15. The apparatus as claimed in claim 12, wherein the desired driving gear is input manually, by means of an operator.

16. The apparatus as claimed in claim 12, wherein the desired driving gear is inputted automatically.

17. The apparatus as claimed in one of claim 12, wherein the computation system calculates a starting time of the fossil-fuelled power generating installation, and wherein the computation system calculates a stopping time of the fossil-fuelled power generating installation.

18. The apparatus as claimed in claim 17, further comprising a simulation unit.

19. The apparatus as claimed in claim 18, further comprising an input unit and an output unit to interchange data with the computer unit.

20. The apparatus as claimed in claim 19, further comprising an output unit to interchange data with the life monitoring system.