On-line monitoring system apparatus of turbine efficiency of heavy type combustion gas turbine and method thereof

Abstract

The invention, which belongs to the combustion gas turbine field, relates to an on-line monitoring system apparatus of the turbine efficiency of a heavy type combustion gas turbine and a method thereof. The apparatus comprises a generator, a low pressure cylinder, an intermediate pressure cylinder, a high pressure cylinder, a compressor, a combustion room, a turbine, a heat recovery boiler, an air parameter measuring unit, a compressor outlet parameter measuring unit, a fuel gas parameter measuring unit, a turbine exhausting parameter measuring unit, a boiler exhausting parameter measuring unit, and a turbine efficiency calculation module. The generator, the low pressure cylinder, the intermediate pressure cylinder, the high pressure cylinder, the compressor, the combustion room, the turbine, and the heat recovery boiler are connected successively; and data from the air parameter measuring unit, the compressor outlet parameter measuring unit, the fuel gas parameter measuring unit, the turbine exhausting parameter measuring unit, and the boiler exhausting parameter measuring unit are transmitted to the turbine efficiency calculation module. In addition, the invention also provides a method. The apparatus and the method are safe and reliable. According to the combustion gas turbine and the matter energy balance in combined cycle, the equivalent turbine efficiency of the combustion gas turbine is obtained indirectly in an on-line manner.

Description

technical field [0001] The invention relates to a system device and a method thereof, in particular to a heavy-duty gas turbine turbine efficiency online monitoring system device and a method thereof, belonging to the field of gas turbine power generation. Background technique [0002] Heavy-duty gas turbine is an efficient and clean high-power power generation equipment. Gas turbine and its combined cycle are widely used in natural gas power generation or cogeneration. A gas turbine is mainly composed of three major components: a compressor, a combustion chamber, and a turbine. The compressor inhales air from the environment and pressurizes the air to form high-pressure air. The high-pressure air is sent into the combustion chamber and reacts with fuel to generate high-temperature and high-pressure gas. The high-pressure gas expands in the turbine to perform work, and the temperature and pressure of the gas are lowered and discharged. [0003] Due to the high temperature o...

AI Technical Summary

Problems solved by technology

Although the patent has simple operation, high diagnostic accuracy and efficiency, and can be applied to the condition monitoring and diagnosis of each turbine generator set, the patent cannot monitor the change of turbine performance online, and the front temperature of the turbine is too high to be measured online. Therefore, it still has the above-mentioned defects

Images