Handle-type turbine blade with five pressure sensing holes on elementary-stage front edge

• Main Authors: MA HONGWEI, XIA CHENXI, XU BOWEN
• Format: Patent
• Language: Chinese; English
• Published: 12.05.2020
• 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 handle-type turbine blade with five pressure sensing holes on an elementary-stage front edge. The handle-type turbine blade comprises the pressure sensing holes, pressure guiding channels, a handle, low-loss bent pipes and pressure guiding pipe connectors, wherein a plurality of rows of the pressure sensing holes are formed on the front edge of the blade in the blade height direction; each row is composed of five pressure sensing holes; the pressure guiding channels are correspondingly connected with the orifices of the pressure sensing holes and the pressure guidingpipe connectors; and the low-loss bent pipes are adopted at bent positions. By the adoption of the handle-type turbine blade, the total pressure, the static pressure, the deflection angle and the Machnumber of airflow at a turbine rotor outlet in the blade height direction, at a plurality of elementary-stage positions, and within a range of the included angle between the incoming flow direction and the front edge +/- 120