Tenon type turbine blade with five pressure sensing holes in leading edge of primitive stage

• Main Authors: MA HONGWEI, XIA CHENXI, XU BOWEN
• Format: Patent
• Language: Chinese; English
• Published: 04.12.2020
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; WEAPONS

The invention discloses a tenon type turbine blade with five pressure sensing holes in the leading edge of a primitive stage. The device comprises a pressure sensing hole, a pressure guiding channel,a blade top tenon, a blade root tenon, a low-loss bent pipe and a pressure guiding pipe connector. A plurality of rows of pressure sensing holes are distributed in the front edge of the blade along the blade height, and each row comprises five pressure sensing holes; the pressure guiding channel is connected with the pressure sensing hole opening and the pressure guiding pipe connector. The devicecan simultaneously measure the turbine inlet and rotor outlet along the blade height direction, a plurality of primitive level positions, and the total pressure, static pressure, deflection angle andMach number of airflow in the range of +/-120 degrees between the incoming flow direction and the leading edge, and is suitable for measuring the distribution of two-dimensional flow field parametersalong the blade height dire