The burner can include one swirler or a plurality of swirlers

A burner with one swirler usually have a round cross-section. A burner comprising a plurality of swirlers might have any cross-section it is typically circular or square. Generally a plurality of burners try arranged coaxially round the axis of a gas turbine.

Relating to one embodiment a plurality of gasoline nozzles is actually marketed in said upstream third associated with amount of the swirl vane assessed along the swirl axis, a lot more preferably just during the upstream quarter of said duration

In a recommended embodiment the burner under full load injects gas from the sucking part or the force part with a minimum of one, preferable of most swirl vanes. Under partial load the gasoline injection can be staged as expressed below.

In a really best embodiment, the gasoline are injected in the suction area plus the pressure side of each swirler vane, in other words. from both edges from the inserting swirl vane concurrently. This enables for a design with a minimal vital swirl quantity and paid down stress drop. The shot from pressure side is pushed from the flow toward the minimum distance, i.e. toward the swirl axis, therefore answering the radially inner the main annulus of this annular construction, while shot from the sucking side was pushed radially outward, thus answering the radially exterior the main annulus. This can be a result of the discharge circulation direction relating to innovation that will end up being boosted by having the trailing side run with enhancing distance from axis, for example. radially outwardly, increasingly within the movement where the pressure side confronts. The crucial swirl numbers s_n because of this style is generally far lower compared to the standard styles to complete the radially inner and external regions.

Ideally, each stream position, getting developed between circumferentially adjacent swirl vanes of show or plurality of swirl vanes, has a petrol entry region that offers downstream-from the best sides (typically along side upstream next or upstream 50 % of the swirl vane) and a gas discharge area that offers upstream through the trailing border of the defining swirl vanes (typically along side downstream stream 3rd or downstream half of the swirl vane), whereby the gasoline try inserted inside stream position during the gasoline entrance region, ideally in (basic) upstream 3rd regarding the swirl vane (i.e. near the leading edge) and/or ideally in a cross-flow injection.

The burner cross-section try defined by a restricting wall structure, which for instance forms a can-like burner

It is recommended that gasoline are inserted by some fuel nozzles, e.g. 4 to 12, preferably 6 nozzles, are ideally arranged one adjacent another in radial movement across the vane area or basically parallel on the leading edge, wherein the energy nozzles become circular and/or include elongated slot nozzles extending in essence parallel towards the innovative with the swirl vane and/or include a first nose for injection of liquid-fuel, and/or the second nose for shot of a gaseous gas and a 3rd nozzle for injections of provider environment, which encloses the most important nozzle and/or the second nose.

Relating to a best embodiment, the swirl vane will get cooling factors, for introduction of cooling atmosphere through the axial swirler particularly in order to avoid flashback. Preferably these soothing elements are shown by inner circulation of air conditioning average over the sidewalls in the vane system (in other words. by giving the vanes with a double wall surface framework) and/or by film air conditioning holes, ideally situated near the leading or trailing sides, and wherein many preferably the cooling characteristics is provided with air from the carrier petrol feed furthermore utilized for the energy shot. A plurality of split retailer orifices or a plurality of nozzles could be positioned next to each other for introduction of air conditioning air. Soothing atmosphere might released through suction and/or the pressure side of part of or of swirl vanes.