Calculating method for outlet temperature of combustion chamber of combustion gas turbine

A technology of outlet temperature and calculation method, applied in the field of aero-engine, can solve the problems of many parameters, inability to directly measure, and difficult to calculate the outlet temperature of the combustion chamber in real time.

Active Publication Date: 2018-11-20
AECC SHENYANG ENGINE RES INST
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Problems solved by technology

When the gas turbine is running, the working state of the low-emission combustor can be judged by the outlet temperature of the combustor, and then the mixing ratio of fuel and air can be adjusted to achieve the goal of low emission of the gas turbine. With the development of the gas turbine, the outlet temperature of the combustor gradually increases , it is difficult for the temperature measuring sensor to directly measure the temperature for a long time. The traditional calculation...

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  • Calculating method for outlet temperature of combustion chamber of combustion gas turbine
  • Calculating method for outlet temperature of combustion chamber of combustion gas turbine
  • Calculating method for outlet temperature of combustion chamber of combustion gas turbine

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[0042] 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 discloses a calculating method for outlet temperature of a combustion chamber of a combustion gas turbine. The calculating method comprises the following steps: processing a gas expansion formula linearly to establish a function relationship formula between a measurable value and the outlet temperature of the combustion chamber; correcting the function relationship formula between the measurable value and the outlet temperature of the combustion chamber according to change of an adjustable guide vane at the inlet of a gas compressor; and obtaining a function relationship formulabetween the measurable value and the outlet temperature of the combustion chamber at different atmospheric temperatures in different atmospheric temperature conditions and correcting the formula to obtain a calculating relationship of the outlet temperature of the combustion chamber. The outlet temperature of the combustion chamber is calculated by adopting the directly measurable performance parameters of the combustion gas turbine, the calculating method is small in calculating quantity, high in precision and high in speed, and the outlet temperature of the combustion chamber can be calculated in real time.

Description

technical field [0001] The invention relates to the technical field of aero-engines, in particular to a method for calculating the outlet temperature of a combustion chamber of a gas turbine. Background technique [0002] The outlet temperature of the combustor is an important performance index of the gas turbine, and it is also an important state parameter for the combustion control and adjustment of the low-emission combustor. When the gas turbine is running, the working state of the low-emission combustor can be judged by the outlet temperature of the combustor, and then the mixing ratio of fuel and air can be adjusted to achieve the goal of low emission of the gas turbine. With the development of the gas turbine, the outlet temperature of the combustor gradually increases , it is difficult for the temperature measuring sensor to directly measure the temperature for a long time. The traditional calculation method of the outlet temperature of the gas turbine combustor is g...

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Application Information

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IPC IPC(8): F02C7/00F02C9/00F01D21/00G06Q50/04
CPCF01D21/003F02C7/00F02C9/00F05D2270/3013F05D2270/303F05D2270/312G06Q50/04Y02P90/30
Inventor 宋少华吉奎栓聂海刚
Owner AECC SHENYANG ENGINE RES INST
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