Dry low-emission combustor

A burner, dry low technology, applied in the combustion chamber, combustion method, combustion equipment and other directions, can solve the problems of unstable combustion, tempering, insufficient mixing of fuel and air, and achieve the effect of preventing tempering problems.

Active Publication Date: 2017-01-04
AECC SHENYANG ENGINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Furthermore, for the current dry low-emission combustion technology, there still exist and the main problems to be solved include: the mixing of fuel and air in the combustion chamber is not good enough, resulting in unstable combustion; backfire often occurs during premixed combustion

Method used

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Embodiment Construction

[0026] 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 the field of design of a dry low-emission combustion chamber of a gas turbine, in particular to a dry low-emission combustor. The dry low-emission combustor comprises a cartridge receiver, a rotatable flow device, a fuel nozzle and a flame cylinder; the rotatable flow device is provided with a body portion and a first boss portion, a first annular inner cavity with an opening in one end is formed between the inner wall of the cartridge receiver and the outer wall of the body portion, a first groove and a second groove which are formed in a side-by-side manner are formed in the outer wall of the body portion in the axis direction, a first through hole and a second through hole are formed in the first groove, a third through hole is formed in the second groove, the fuel nozzle is provided with a circular-ring second boss portion, a main fuel spraying rod, on-duty fuel spraying rods, a center cold air baffle and a conical sleeve, and the flame cylinder is coaxially arranged at one end, back onto the first boss portion, of the rotatable flow device body in a sleeving manner. According to the dry low-emission combustor, good mixing and stable combustion of fuel and air can be effectively achieved, and the common tempering problem in pre-mixing combustion can be prevented.

Description

technical field [0001] The invention relates to the design collar of a gas turbine dry-type low-emission combustor, in particular to a dry-type low-emission combustor. Background technique [0002] Dry low-emission combustion technology has broad application prospects in industrial gas turbines, and has good performance in reducing pollutant emissions. It is the main technical means for gas turbines to meet domestic and international environmental protection regulations. Many foreign manufacturers have formed their own unique dry low-emission combustion technologies, and these technologies have become the main threshold for domestic gas turbines to enter the market and participate in international competition. Therefore, the research and development of dry low-emission combustion technology with independent intellectual property rights is of great significance for breaking foreign monopoly and promoting the development of my country's gas turbine industry. [0003] Furtherm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23R3/38
CPCF23R3/38F23R2900/03343
Inventor 马宏宇李洁李孝堂贾春燕张善军赵凯岚宁怀松
Owner AECC SHENYANG ENGINE RES INST
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