A Gentle Gas Turbine Combustor

Abstract

The invention provides a soft gas turbine combustion chamber, which relates to the technical field of gas turbines. Based on the disadvantages of the traditional gas turbine combustor, such as harsh working environment, large heat load, high temperature and high speed, and complex flow field, the single-point fuel injection burner is changed to multi-point injection on the wall of the flame tube, which can realize multi-point mixing of fuel and air, and establish a soft The combustion zone realizes stable and efficient combustion; the wall of the flame tube is designed as a double-wall structure, and the middle is designed as a honeycomb interlayer structure, which can reasonably cool the high-temperature airflow inside the flame tube and ensure that the fuel in the fuel branch pipe is fully preheated. It can play a role in reducing the noise generated during the working process of the combustion chamber; the design of the boss structure in the flame tube can make the flame tube partitioned, and can quickly quench the flame from the oil-rich combustion area to the soft combustion area, reducing nitrogen oxidation emissions, and to achieve stable combustion of fuel in the flame tube.

Description

technical field [0001] The invention belongs to the technical field of gas turbine energy utilization and pollution control, and in particular relates to a soft gas turbine combustion chamber. Background technique [0002] As an important heat-to-power conversion device, gas turbines are increasingly widely used in aviation, navigation and other fields, and have an irreplaceable role and status in national economy and national defense construction. The improvement of the gas turbine cycle efficiency mainly depends on the increase of the exhaust temperature of the combustion chamber, and the contradiction is that the emission of nitrogen oxides in the combustion chamber will also increase with the increase of the exhaust temperature, and the working environment of the combustion chamber of the gas turbine is also very Harsh, such as high internal pressure in the combustion chamber, large heat load, high temperature and high speed, and complex flow field. Therefore, ensuring t...

AI Technical Summary

Problems solved by technology

The improvement of the gas turbine cycle efficiency mainly depends on the increase of the exhaust temperature of the combustion chamber, and the contradiction is that the emission of nitrogen oxides in the combustion chamber will also increase with the increase of the exhaust temperature, and the working environment of the combustion chamber of the gas turbine is also very Harsh, such as high internal pressure in the combustion chamber, large heat load, high temperature and high speed, and complex flow field. Therefore, ensuring the high combustion efficiency of the combustion chamber to improve the performance of the gas turbine is the problem and difficulty that the gas turbine needs to solve at this stage

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