Special exhaust stage blade for remodeling units

• Main Author: QIGUO,DU YANG
• Format: Patent
• Language: English
• Published: 04.07.2007
• 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 utility model relates to a special end vane used for transforming the set, in particular to a steam turbine vane. The purpose of the utility model is to solve the problems that the prior end vane used for condensing 50KW set has unstable quality and short service life, which seriously affects the safe operation of the steam turbine and to supply a special end vane for transforming the set. As for the utility model, the height of a working part (1) is 540mm; the axial width of the vane working part (1) root is 108.75mm; the frame line of the vane working part (1) is a twisty surface provided with variable cross-section and along with the increase of the vane height, the cross-section varies and the area of the cross-section reduces and the two adjacent cross-sections have a relative twisting angle; a Phi 11.5/Phi 7.5mm hollow steel pipe and a Phi 10 / Phi 6mm hollow steel pipe are connected with each other to form a loose lacing wire (2) with two entire circles; and a vane root (3) is a straight-tooth four-branch type and the axial width H is 97.5mm. The utility model has the advantages of easy assembling, good dynamic frequency adjusting performance, small dynamic stress, elimination of the vane rupture and safe and reliable operation.