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Method for evaluating the engine's main combustion chamber flame tube outlet temperature field quality

A technology of the outlet temperature field and the main combustion chamber, which is applied in the application of thermometers, jet engine testing, temperature measurement in motors, etc., can solve the problems that the flame cylinder cannot be given, the accuracy of calculation results is poor, and unreasonable, etc., to achieve intuitive and effectively evaluate the effects of

Inactive Publication Date: 2017-02-01
AECC SHENYANG ENGINE RES INST
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Problems solved by technology

[0005] However, the above method still has the disadvantage of poor accuracy of calculation results; moreover, when it is judged that a flame cylinder with a certain structure does not meet the above indicators, it is impossible to give which aspects of the flame cylinder are unreasonable or need to be improved

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  • Method for evaluating the engine's main combustion chamber flame tube outlet temperature field quality
  • Method for evaluating the engine's main combustion chamber flame tube outlet temperature field quality
  • Method for evaluating the engine's main combustion chamber flame tube outlet temperature field quality

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Embodiment Construction

[0024] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention relates to a gas turbine combustion chamber's full-ring flame tube outlet temperature field testing piece, and more particularly to a method for evaluating the engine's main combustion chamber flame tube outlet temperature field quality. The method comprises the following steps: dividing the modified full-ring flame tube according to the individual heads; using each head as a sample point; setting a preset number of temperature data measuring points in each sample point area; conducting temperature data measurement in the preset numbers to obtain the sample data of each sample point; averaging all the temperature data at the same position inside the same row position in all sample point areas; and drawing a two-dimensional temperature changing curve for the temperature data measuring points from inwardly to outwardly. According to the method for evaluating the engine's main combustion chamber flame tube outlet temperature field quality, it is possible to eliminate the influence of the combustion instability on data and to evaluate more directly and effectively the combustion chamber flame tube outlet temperature field quality and to determine the direction for improvement.

Description

technical field [0001] The invention relates to a method for a temperature field test piece at the outlet of a gas turbine combustor full-ring flame tube, in particular to a method for evaluating the quality of the temperature field at the outlet of a flame tube in a main combustion chamber of an engine. Background technique [0002] In modern gas turbine combustor flame tubes and test devices, there are certain requirements for the quality of the temperature field at the outlet of the flame tube, and there are usually index requirements to evaluate whether it meets the indicators. The more commonly used at this stage is the circumferential non-uniformity of the outlet temperature field OTDF, the specific formula is as follows: [0003] O T D F = T 4 max - T 4 a v e T 4 a ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/14G01K13/00G06F17/18
CPCG06F17/18G01K13/00G01M15/14G01K2205/00
Inventor 门玉宾柴昕张弛边际刁瑶朋
Owner AECC SHENYANG ENGINE RES INST
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