Variable geometric outlet vane
A technology of outlet guide vane and geometry, applied in non-variable pumps, components of pumping devices for elastic fluids, machines/engines, etc., can solve deviation from design conditions, exhaust diffusion section and combustion chamber flow Unfavorable effects and other problems, to achieve the effect of uniform flow field, improved efficiency, and improved economic benefits
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Embodiment 1
[0028] see Figure 1 to Figure 3 , The present invention discloses a compressor, including a cylinder 10, a hub 11, a moving blade 13, a stationary blade 14, an inlet guide vane 12, a variable geometry outlet guide vane 30, and a guide vane adjustment control system.
[0029] figure 1 A schematic diagram of the meridional flow of a compressor is shown, and the flow of the compressor is composed of moving blades 13, stationary blades 14, cylinders 10, and hubs 11. The gas flows through the inlet guide vane 12, pre-swirls to the rotor blade 13 at the outlet of the inlet guide vane 12, and then is compressed into a high-pressure gas in the rotor blade 13 and stationary vane 14, and the temperature rises accordingly. Compressed air flows in the channel between the hub 11 and the cylinder 10; the rotor blade 13 is installed on the hub 11, the stationary vane 14 is installed on the cylinder 10, and the air flow is in the channel between the blades of the rotor hub 14 and the hub 11...
Embodiment 2
[0041] In order to prevent the compressor from stalling or clogging when it operates under variable working conditions, and considering the requirements of the combustion chamber and the exhaust diffuser section on the airflow angle at the outlet of the guide vane, the outlet is designed to be adjusted in sections, the front section is adjustable, and the rear section is fixed. It can not only ensure that the inlet angle of attack will not be too large under non-design working conditions, but also avoid the adverse effect of the change of the outlet airflow angle on the flow of the exhaust diffusion section.
[0042] In this embodiment, the variable geometry outlet guide vane includes an adjustable inlet section and a fixed outlet section, and there is a gap between the trailing edge of the adjustable inlet section and the front edge of the fixed outlet section; the gap should not be too large or too small. The gap is composed of two sections of smooth curves, through which the...
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