| 摘要 |
FIELD: machine building.SUBSTANCE: modular vane or blade for gas turbine contains the following modular elements: flange with flat or profile surface creating flange level, and through hole in it, and aerofoil profile continuing through the flange. The aerofoil profile contains carrying structure, aerodynamically profiled enclosure. The carrying structure continues along the longitudinal axis of the aerofoil profile, contains tailpiece for securing on the holder of the gas turbine vane pr blade, tailpiece and at least one internal channel continuing from the tailpiece to the end part of the aerofoil profile, longitudinally continuing gap. The aerodynamically profiled enclosure continues to distance relatively to the carrying structure, and creates external contour of the aerofoil profile. The longitudinally continuing gap is made between the carrying structure and enclosure. The carrying structure contains multiple through holes to direct the cooling medium from the internal channel to the gap. The enclosure is connected as single part with the carrying structure by means of the first connection in area below the flange level. The enclosure is connected with the carrying structure by means of at least one additional connection. At least one additional connection is located at the end part of the aerofoil profile, and is connection by means of the compliance as per shape, permitting relative movement in the longitudinal direction between the enclosure and carrying structure.EFFECT: invention improves the cooling efficiency upon simultaneous decreasing of the coolant quantity.14 cl, 10 dwg |
