초록 ▼

The high pressure inlet bleed heat system includes a plurality of tubes which receive heated compressed air from the compressor extraction discharge manifold. The tubes extend into the inlet duct of the compressor, are uniformly spaced one from the other and have a uniform distribution of laterally

The high pressure inlet bleed heat system includes a plurality of tubes which receive heated compressed air from the compressor extraction discharge manifold. The tubes extend into the inlet duct of the compressor, are uniformly spaced one from the other and have a uniform distribution of laterally opening apertures along their lengths in registration with the apertures of next laterally adjacent tubes. The tubes are located downstream of the silencer baffles. By providing choked flow through the apertures and lateral registration of the apertures of adjacent tubes, complete mixing of the heated air with the inlet air vortices behind the silencer baffles is achieved, affording a uniform temperature distribution across the inlet duct with minimum pressure loss. The tubes are constructed to accommodate thermal expansion of the manifold receiving compressor discharge air, the manifold also being supported to accommodate thermal expansion and contraction.

대표청구항 ▼

[ What is claimed is:] [1.] An inlet bleed heat system for the compressor of a turbine, comprising:an air inlet duct for delivering ambient air along a flow path to the compressor;a plurality of tubes, generally parallel to one another in the flow path of said air inlet duct and distributed substant

[ What is claimed is:] [1.] An inlet bleed heat system for the compressor of a turbine, comprising:an air inlet duct for delivering ambient air along a flow path to the compressor;a plurality of tubes, generally parallel to one another in the flow path of said air inlet duct and distributed substantially uniformly in said inlet duct, said tubes adapted for receiving heated extraction air from the compressor;each said tube including a plurality of apertures spaced from one another along opposite sides of said tube for discharging the heated air from the tubes into the flow path, said apertures being arranged along next-adjacent tubes for discharging the heated air in directions toward one another to promote mixing of the discharged heated air with the ambient inlet air passing between the tubes to supply air to the compressor having a substantially uniform temperature distribution across the duct.