Gas turbine temperature monitoring method and gas turbine temperature monitoring system
A technology for gas turbine and exhaust gas temperature, which is applied in the field of automation and can solve the problems of low efficiency, large contingency, and inability to detect the dispersion degree of gas turbine exhaust gas temperature.
Active Publication Date: 2019-10-15
CHINA SHENHUA ENERGY CO LTD +2
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Problems solved by technology
[0005] In the process of realizing the present invention, the inventors of the present application found that the above-mentioned solution in the prior art cannot detect the dispersion degree of the exhaust gas temperature of the gas turbine, that is, the combustion condition of the flame tube cannot be directly determined according to the change of the detected exhaust temperature, and in the gas turbine When there are problems such as abnormal combustion or even damage of the flame tube, the combustion situation of the combustion chamber in the burner can only be judged artificially through experience, which is inefficient and accidental
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[0032] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.
[0033] The combustor of the gas turbine converts the chemical energy of the fuel into heat energy, and heats the high-pressure air compressed by the compressor to a high temperature to make the turbine expand and work. The combustor of the gas turbine includes a plurality of flame tubes, and the flame tubes are installed in the combustion chamber. The exhaust temperature of the flame cylinder can be detected by connecting a device capable of detecting temperature with the flame cylinder.
[0034] figure 1 It is the display interface of the existing gas turbine temperature monito...
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The embodiments of the invention provide a gas turbine temperature monitoring method and a gas turbine temperature monitoring system and belongs to the technical field of automation. The gas turbine temperature monitoring method comprises the following steps: detecting the exhaust temperature of each of a plurality of flame tubes; determining the deflection angle of flame of each flame tube according to the quantity of the flame tubes and the working condition of a gas turbine; and determining the actual flame tube corresponding to the detected exhaust temperature according to the deflection angle of the flame of the flame tube. The gas turbine temperature monitoring method and a gas turbine temperature monitoring system is characterized by having the advantages that the actual flame tubecorresponding to the detected exhaust temperature can be determined according to the deflection angle of flame of the flame tube by detecting the exhaust temperature in real time, and when an exhausttemperature value is abnormal, a combustion chamber or the flame tube with faults can be accurately determined, so that the occurrence of adverse events caused by the faults of the gas turbine due tothe abnormity of the combustion chamber can be effectively reduced, and the reliability of safe operation of the gas turbine can be greatly improved.
Description
technical field [0001] The invention relates to the technical field of automation, in particular to a gas turbine temperature monitoring method and a gas turbine temperature monitoring system. Background technique [0002] In order to monitor whether the high-temperature components of the gas turbine are working normally, the exhaust temperature of the flame tube is detected by the thermocouple temperature measuring element installed on the exhaust passage. Under ideal and normal working conditions, the exhaust temperature data measured by these thermocouples are exactly the same, but there are always some deviations in reality. This deviation is called the gas turbine exhaust temperature dispersion. [0003] Since the gas turbine operates continuously at high temperature, various accidents such as blockage and rupture of the flame tube or transition section of the burner will inevitably occur. However, the temperature of these high-temperature components cannot be directly ...
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IPC IPC(8): F02C9/00
Inventor 王树民程伟闫计栋刘江贾建波马生福王亚平邱利雄王家东张明
Owner CHINA SHENHUA ENERGY CO LTD