The burner can consist of one swirler or a plurality of swirlers

A burner with one swirler generally possess a circular cross-section. A burner containing a plurality of swirlers alt tips can have any cross-section it is typically round or rectangular. Usually a plurality of burners are organized coaxially around the axis of a gas turbine.

Based on one embodiment a plurality of gasoline nozzles was delivered in said upstream third with the period of the swirl vane sized along the swirl axis, extra ideally only inside upstream one-fourth of mentioned size

In a recommended embodiment the burner under full-load injects energy through the sucking area and/or pressure part of at least one, better of all swirl vanes. Under limited burden the fuel injections can be staged as expressed below.

In an exceptionally recommended embodiment, the energy try injected on the sucking part in addition to pressure side of every swirler vane, for example. from both sides in the injecting swirl vane concurrently. This enables for a design with a reduced critical swirl amounts and paid off force fall. The injection through the pressure side is actually powered because of the flow toward minimal distance, in other words. toward the swirl axis, thereby filling up the radially inner the main annulus associated with annular housing, while injections through the sucking side is pushed radially outward, thus filling the radially outer an element of the annulus. This is certainly a consequence of the discharge flow position based on development and will getting enhanced by having the trailing advantage run with developing distance from the axis, i.e. radially outwardly, increasingly in direction where the pressure area faces. The crucial swirl number s_n because of this style tends to be lower compared to standard designs to complete the radially internal and outside areas.

Preferably, each circulation slot, becoming produced between circumferentially surrounding swirl vanes of show or plurality of swirl vanes, provides a gas entrances area that extends downstream-from the main sides (typically over the upstream third or upstream 1 / 2 of the swirl vane) and a gas discharge area that stretches upstream from the trailing edges of their determining swirl vanes (typically over the downstream stream 3rd or downstream half of the swirl vane), when the energy was injected in to the circulation slot in fuel entry area, ideally within the (earliest) upstream third with the swirl vane (for example. near to the innovative) and/or ideally in a cross-flow treatment.

The burner cross-section was defined by a restricting wall, which for example kinds a can-like burner

Its chosen that fuel is actually inserted by a few gas nozzles, e.g. 4 to 12, ideally 6 nozzles, being ideally organized one adjacent another in radial direction along side vane area or really parallel with the top rated, wherein the energy nozzles are circular and/or tend to be elongated position nozzles increasing in essence parallel into innovative associated with swirl vane and/or make up a primary nose for shot of liquid-fuel, and/or one minute nozzle for injection of a gaseous gas and a third nose for injection of company environment, which encloses the initial nozzle and/or the 2nd nose.

Per a recommended embodiment, the swirl vane will get soothing items, for introduction of air conditioning environment through axial swirler in particular in order to avoid flashback. Preferably these soothing characteristics are given by interior blood flow of air conditioning media along side sidewalls in the vane system (in other words. by providing the vanes with a dual wall design) and/or by movie cooling gaps, ideally set near the leading or trailing edge, and whereby most preferably the cooling factors become given with air from company petrol feed furthermore employed for the energy shot. A plurality of separate outlet orifices or a plurality of nozzles is generally organized alongside each other for introduction of air conditioning air. Cooling environment is likely to be launched through the sucking and/or pressure part of a part of or of most swirl vanes.