Method and Device for Monitoring the Combustion Process in a Power Station on the Basis of an Actual Concentration Distribution of a Material

• US 20110287372A1
• Filed: 11/10/2009
• Published: 11/24/2011
• Est. Priority Date: 11/11/2008
• Status: Abandoned Application

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Meerbeck, Bernhard, Speh, Rainer
• Application Number:
  US13/128,475
• Publication Number:
  US 20110287372A1
• Time in Patent Office: Days
• US Class Current: 431/12
• CPC Class Codes: F23D 1/00 Burners for combustion of pulverulent fuel disposition of burners F23C
• CPC Class Codes: F23D 2201/00 Burners adapted for particulate solid or pulverulent fuels
• CPC Class Codes: F23N 5/003 using detectors sensitive to combustion gas properties F23N5/02, F23N5/18 - F23N5/26 take precedence
• CPC Class Codes: F23N 5/02 using devices responsive to thermal changes or to thermal expansion of a medium
• CPC Class Codes: F23N 5/022 using electronic means F23N5/04 - F23N5/14 take precedence

Abstract

Methods and a device for monitoring the combustion process in a power station are provided. An actual concentration distribution of a material and/or an actual temperature distribution are measured in the combustion chamber. Conclusions are drawn regarding the type of combustion material on the basis of the measured actual concentration distribution or temperature distribution. A concentration distribution or temperature distribution of a material that has been determined using a sample fuel is compared with the measured actual concentration distribution or temperature distribution.

Claims

1-7. -7. (canceled)

8. A method of monitoring combustion in a combustion chamber in a power station, comprising:

providing a combustion chamber and a fuel;

burning the fuel in the combustion chamber;

measuring an actual concentration distribution of a substance in the combustion chamber; and

drawing conclusions about the fuel based upon the measured actual concentration distribution,

wherein a comparison is made between a concentration distribution for the substance, determined from known fuels as sample fuels, and the measured actual concentration distribution.

9. The method as claimed in claim 8, wherein the comparison is made with at least one stored sample characteristic concentration for the substance.

13. The method as claimed in claim 8, wherein the drawing of conclusions about the fuel is effected at a same time as the measuring.

10. A method for monitoring combustion in a combustion chamber in a power station, comprising:

providing a combustion chamber and a fuel;

burning the fuel in the combustion chamber;

measuring an actual temperature distribution in the combustion chamber; and

drawing conclusions about the fuel based upon the measured actual temperature distribution,

wherein a comparison is made between a temperature distribution determined with a sample fuel and the measured actual temperature distribution.

11. The method as claimed in claim 10, wherein the comparison is made with at least one stored characteristic temperature distribution.

12. The method as claimed in claim 10, wherein the drawing of conclusions about the fuel is effected at a same time as the measuring.

14. A device for monitoring combustion in a combustion chamber in a power station, comprising:

a measuring device for measuring an actual concentration distribution of a substance in the combustion chamber; and

an evaluation device for drawing conclusions about a fuel on the basis of the measured actual concentration distribution.

15. The device as claimed in claim 14, further comprising:

a measuring device for measuring an actual temperature distribution in the combustion chamber,

wherein the conclusions are based upon the measured actual temperature distribution and the measured actual concentration distribution.

16. The device according to claim 14, wherein the analysis device is coupled via a data bus to the evaluation device, an operating device, and instrumentation equipment.

17. The device according to claim 16, wherein the evaluation device includes an optimization device.

18. The device according to claim 17, wherein, via the operating device, the actual concentration distributions and the actual temperature distributions, are used such that the optimization device draws conclusions about a quantitative composition of the fuel currently burning in a combustion chamber.

19. The device according to claim 18, wherein the quantitative composition of the fuel is determined in order to optimize flames burning in the combustion chamber, in particular in respect of a low emission of NO_x (oxides of nitrogen).