A marine three-shaft gas turbine based on rotating detonation combustion

Abstract

The invention provides a ship three-shaft gas turbine based on rotary detonation combustion. The ship three-shaft gas turbine comprises a low-pressure compressor, a high-pressure compressor, a rotary detonation combustion chamber, a thermojet detonation tube, a mixer, a low-pressure turbine body, a high-pressure turbine body, a power turbine body, a load and a cold source. The rotary detonation combustion chamber is applied to the ship gas turbine. The mode that air of the low-pressure compressor participates in combustion and air of the high-pressure compressor participates in mixing and cooling is adopted, the effect that a working medium at an inlet of the turbine does not exceed the temperature is ensured, and the working medium subjected to detonation combustion has higher working capacity. The supercharging performance of the rotary detonation combustion chamber is used, and the cycle thermal efficiency of the gas turbine is improved by 3% to 5% under the same turbine inlet temperature, part efficiency and compressor pressure ratio.

Description

technical field

[0001] The invention relates to gas turbine technology, in particular to a marine three-shaft gas turbine based on rotating detonation combustion. Background technique

[0002] The thermal efficiency of the gas turbine cycle is the most important performance index for evaluating the technical level of the gas turbine design, and reducing the entropy increase in the gas turbine cycle is an important way to improve the thermal efficiency of the gas turbine cycle. In the Brayton cycle, the isobaric combustion process is the thermodynamic process with the largest entropy increase. Reducing the entropy increase of this thermodynamic process is limited by the principle of isobaric combustion, which in turn limits the substantial increase in the efficiency of gas turbines based on the simple Brayton cycle. With the development of science and technology, the performance requirements of gas turbines are gradually improved, and the defects such as high pollutant emissi...

Examples

Embodiment Construction

[0018] Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in this specification. It should be understood, however, that in developing any such practical embodiment, many implementation-specific decisions must be made in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and those Restrictions may vary from implementation to implementation. Moreover, it should also be understood that development work, while potentially complex and time-consuming, would at least be a routine undertaking for those skilled in the art having the benefit of this disclosure.

[0019] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the ...

technical field

[0001] The invention relates to gas turbine technology, in particular to a marine three-shaft gas turbine based on rotating detonation combustion. Background technique

[0002] The thermal efficiency of the gas turbine cycle is the most important performance index for evaluating the technical level of the gas turbine design, and reducing the entropy increase in the gas turbine cycle is an important way to improve the thermal efficiency of the gas turbine cycle. In the Brayton cycle, the isobaric combustion process is the thermodynamic process with the largest entropy increase. Reducing the entropy increase of this thermodynamic process is limited by the principle of isobaric combustion, which in turn limits the substantial increase in the efficiency of gas turbines based on the simple Brayton cycle. With the development of science and technology, the performance requirements of gas turbines are gradually improved, and the defects such as high pollutant emissi...

Examples

Embodiment Construction

[0018] Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in this specification. It should be understood, however, that in developing any such practical embodiment, many implementation-specific decisions must be made in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and those Restrictions may vary from implementation to implementation. Moreover, it should also be understood that development work, while potentially complex and time-consuming, would at least be a routine undertaking for those skilled in the art having the benefit of this disclosure.

[0019] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the ...

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