Self-circulation type treatment casing structure of gas compressor of ship gas turbine

Abstract

The invention provides a self-circulation type treatment casing structure of a gas compressor of a ship gas turbine. According to the self-circulation type treatment casing structure of the gas compressor of the ship gas turbine, firstly, a self-circulation type treatment casing is composed of an outer ring and an inner ring, the outer ring and the inner ring are connected through a bolt, and a gap between the outer ring and the inner ring forms an air guide flow channel of the treatment casing; secondly, in order to increase the connection strength between the inner ring and the outer ring, a boss is welded on the outer side of the inner ring; thirdly, three important structural parameters (the axial length of the air guide flow channel, the width of an air inlet flow channel and the width of an exhaust flow channel) of the self-circulation type treatment casing are determined through the design method of the self-circulation type treatment casing of the gas compressor of the ship gas turbine; and finally, the self-circulation type treatment casing adopts an up-down halving structure, so that treatment casings with different structural forms can be quickly replaced and mounted on a gas compressor test bed. Meanwhile, the self-circulation type treatment casing structure is not limited to a ship gas turbine axial flow compressor and is also suitable for various industrial gas turbine axial flow compressors and aero-engine axial flow gas compressors with treatment casings.

Description

technical field [0001] The invention relates to a self-circulating processing casing structure of a gas turbine compressor of a ship, and belongs to the technical field of aerodynamic design and calculation analysis of the compressor. Background technique [0002] As one of the three most important core components of a marine gas turbine, the technical performance and reliability of the compressor directly affect the realization of the safety, technical indicators and economic indicators of the marine gas turbine. In order to meet the requirements of the ship's navigation process, the ship's gas turbine should not only ensure the performance of the design point, but also pay special attention to the margin and efficient operation under low working conditions. The operating characteristics under such a wide range of variable working conditions make the stability of gas turbines in low working conditions very prominent when they are used as propulsion or power generation in sh...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of improving the stability of the gas turbine compressor in low working conditions while ensuring the performance of the design point of the gas turbine compressor of the ship, and then provides a self-circulating processing case structure of the gas turbine compressor of the ship

Images