Modified heavy-duty gas turbine

Abstract

The invention relates to a modified heavy-duty gas turbine. The modified heavy-duty gas turbine comprises an air inlet casing assembly, wherein a gas compressor stator assembly, a rotor assembly, a combustion chamber, a turbine stator assembly, an exhausting pressure expander and a bearing assembly are sequentially arranged at the right end of the air inlet casing assembly; all stator assemblies are of horizontal opposite opening structures; the lower half part of a front supporting point bearing assembly is integrally casted with the lower half part of an air inlet casing; the lower half parts of an intermediate supporting point bearing and a rear supporting point bearing are correspondingly mounted at the lower half part of a combustion chamber casing and the lower half part of the exhausting pressure expander. The modified heavy-duty gas turbine has the advantages that the technical risk can be effectively reduced; few new tools and devices are needed, so that the manufacturing period and the construction cost can be decreased; and meanwhile, the utilization rate of spare parts of an original machine is high, so that the reliability can be ensured.

Description

technical field [0001] The invention belongs to the technical field of gas turbines, in particular to a modified heavy-duty gas turbine. Background technique [0002] With the vigorous development of the civil gas turbine industry, the competition in the gas turbine product market is increasingly intensified. How to speed up the development process of heavy-duty gas turbine products while ensuring a high degree of technical maturity has become the key to the development of gas turbine products. Heavy-duty gas turbine products require long life, high reliability, and high performance. Newly designed heavy-duty gas turbines are difficult to design and have high technical risks. They need to invest a lot of money in component testing and verification. At the same time, the development cycle is long. From the first prototype to design finalization, it usually takes 20 From 20 to 30 years, even if the development is successful, it is often not accepted by the market because the d...

AI Technical Summary

Problems solved by technology

Heavy-duty gas turbine products require long life, high reliability, and high performance. Newly designed heavy-duty gas turbines are difficult to design and have high technical risks. They need to invest a lot of money in component testing and verification. At the same time, the development cycle is long. From the first prototype to design finalization, it usually takes 20 From 20 to 30 years, even if it is successfully developed, it is often not accepted by the market because the design index is far lower than market expectations

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