Trapped-vortex combustor with swirlers

The invention provides a trapped-vortex combustor with swirlers. The swirlers which are matched with the combustor are arranged on the rear wall faces of concave cavities of the trapped-vortex combustor, two-stage blades of each swirler have a certain angle, after the oil gas in a trapper-vortex region passes through the swirlers, the flow state can be changed, rotational flow can be formed, and therefore flow return regions with the high strength are formed in the concave cavities, the influence of the main air flow on the flow of the concave cavities is reduced, and a stable high-temperatureheat source is provided for a main combustion region. Meanwhile, due to the fact that the two-stage blades of each swirler are opposite in rotating direction, the high shear force exists between theair flow ejected from the two-stage blades, the atomization degree of fuel oil of the trapped-vortex region and the oil and gas mixing degree can be greatly improved, and the combustion efficiency isimproved. 本发明提供了种带旋流器的驻涡燃烧室