Gas turbine compression system and compressor structure

摘要

A gas turbine compression system (1) comprising a gas channel (5), a low pressure compressor section (8) and a high pressure compressor section (9) for compression of the gas in the channel and a compressor structure (14) arranged between the low pressure compressor section (8) and the high pressure compressor section (9). The compressor structure (14) is designed to conduct a gas flow in the gas channel and comprises a plurality of radial struts (15,16,21,24,25) for transmission of load, wherein at least one of the struts (15,16,21,24,25) is hollow for housing service components. The compressor structure (14) is arranged directly downstream of a last rotor (10) in the low pressure compressor section (8) and designed for substantially turning a swirling gas flow from the rotor (10) by a plurality of the struts (15,16,21,24,25) having a cambered shape.

主权项

1. A gas turbine compression system (1), comprising:
a gas channel (5), a low pressure compressor section (8) and a high pressure compressor section (9) for compression of gas in the channel, the low pressure compressor section (8) comprising an alternating series of rotating rotor blades and stationary stator blades with the last blades in the series being rotor blades, and a compressor structure (14) arranged between the low pressure compressor section (8) and the high pressure compressor section (9), wherein the compressor structure (14) is designed to conduct a gas flow in the gas channel and comprises a plurality of radial struts (15, 16, 21, 24, 25) for transmission of load, with the struts being spaced by a distance downstream from the last low-pressure-compressor rotor blades in the series with no intervening stator blades therebetween, wherein at least one of said struts is hollow for housing service components, and wherein the compressor structure (14) is designed for substantially turning a swirling gas flow from the last low-pressure-compressor rotor blades in the series by virtue of a plurality of said struts (15, 16, 21, 24, 25) having a cambered shape.