Gas turbine combustor and method of use thereof

A gas turbine and combustion chamber technology, applied in the direction of combustion methods, combustion chambers, continuous combustion chambers, etc., can solve the problems of difficult ignition of low calorific value fuels, easy extinguishment of combustion chambers, and easy extinguishment, so as to facilitate ignition and full combustion, avoid Effect of tempering and high combustion temperature

Active Publication Date: 2019-05-28
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Specifically, the following problems need to be solved: 1) the combustion chamber is prone to flameout during low-load operation; 2) it is difficult to ignite low calorific value fuel; 3) it is easy to flame out when low calorific value fuel is burned; 4) when the traditional duty flame is used for stable combustion NO x high emissions

Method used

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  • Gas turbine combustor and method of use thereof
  • Gas turbine combustor and method of use thereof
  • Gas turbine combustor and method of use thereof

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Embodiment Construction

[0073] figure 1 A schematic block diagram of a gas turbine according to an embodiment of the present invention is shown, showing gas flow paths. Such as figure 1 As shown, the gas turbine may include a compressor 2 , a combustor 1 and a turbine 4 . The air is compressed into high-pressure gas by the compressor 2, and then the high-pressure gas is mixed with fuel in the combustion chamber 1 to participate in combustion to form high-pressure and high-speed gas. Finally, the high-pressure and high-speed gas drives the turbine 4 to rotate and generate power, and supplies power to the load 5 . A connecting shaft 3 is arranged between the compressor 2 and the turbine 4 , and the connecting shaft 3 is used to connect the compressor 2 and the turbine 4 together so as to realize the transmission connection between the turbine 4 and the compressor 2 .

[0074] Gas turbines in the prior art have the disadvantages that combustion chamber 1 is prone to flameout during low-load operation,...

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Abstract

The invention provides a gas turbine combustion chamber and a use method thereof. The gas turbine combustion chamber comprises a flame cylinder, at least one primary fuel nozzle and at least one primary air nozzle. The flame cylinder is provided with a cylindrical wall face, each primary fuel nozzle is connected with the front portion of the cylindrical wall face and is arranged to jet fuel into the flame cylinder in the tangent direction of the cylindrical wall face, and the fuel is spirally propelled in the flame cylinder from front to back in the preset direction, each primary air nozzle isconnected with the front portion of the cylindrical wall face and is arranged to jet air into the flame cylinder in the tangent direction of the cylindrical wall face, and the air is spirally propelled in the flame cylinder from front to back in the preset direction, fuel jetted by the primary fuel nozzles and air jetted by the primary air nozzles form rotational flow in the flame cylinder, afterignition, the tangent rotation flow flame is formed, and through the tangent rotation flow flame, ignition performance and the flame stability can be improved.

Description

technical field [0001] The invention relates to the technical field of gas turbines, in particular to a combustion chamber of a gas turbine and a method for using the same. Background technique [0002] Gas turbine is a clean and efficient power and power generation equipment. Generally, a gas turbine generates heat energy by burning a mixture of fuel and air, forms a high-temperature airflow, and drives a turbine to rotate, thereby driving a generator to generate electricity. At present, two important development trends of gas turbines are widening the turndown ratio (that is, improving low-load operation performance) and expanding the range of fuel adaptation. [0003] On the one hand, due to the rapid development of renewable energy, it is necessary to use thermal power for peak regulation, which requires frequent load-changing operation of gas turbines, especially in part-load and low-load conditions. When operating under low-load conditions, the flame temperature of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23R3/38F23R3/12
CPCF23R3/12F23R3/38
Inventor 李苏辉石保禄钱文凯
Owner TSINGHUA UNIV
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