Swirl-Vane Nozzle Assembly for Compact Low-NOx Combustors

The patent introduces a swirl vane with curved blades that generates rotational flow, transforming the linear axial flow into a spiral motion pattern. This curvature in the flow path enhances mixing efficiency by creating radial and axial velocity components that promote turbulent mixing, while the compact spiral structure achieves the desired mixing in a shorter axial length compared to conventional straight tubes.

The swirl vane adds a rotational dimension to the原本 axial flow, creating a three-dimensional spiral flow pattern. This dimensional transformation allows the flow to utilize both axial and radial directions for mixing, achieving superior mixing efficiency in a compact space without requiring extended tube length.

The swirl vane's curved blade design creates a compact spiral flow structure that achieves thorough mixing within a reduced axial length. This curved flow path allows the combustor to maintain high mixing efficiency while minimizing the overall volume required for the mixing section.

By introducing rotational motion as an additional dimension, the mixing process is accelerated and compacted. The spiral flow pattern enables effective mixing to occur in a shorter axial distance, thereby reducing the combustor's overall size while maintaining or improving mixing efficiency.

The swirl vane creates a rotational flow pattern that enhances fuel-air mixing intensity and uniformity. This improved mixing ensures more complete combustion at lower temperatures, reducing the formation of thermal nitrogen oxides that typically form in long residence times at high temperatures associated with extended tube lengths.

The addition of rotational flow dimension accelerates the mixing process, reducing the residence time of fuel and air in the high-temperature zone. This shortened exposure time at elevated temperatures minimizes nitrogen oxide generation while maintaining effective mixing efficiency.