| 摘要 |
FIELD: radial-axial hydraulic turbines with metal spiral chamber. ^ SUBSTANCE: proposed spiral chamber of hydraulic turbine contains intake branch pipe, closing links and power tie between them. Power tie is made in form of two or more ribs rigidly connected with band enclosing intake branch pipe and rigidly connected with branch pipe over entire contour, or partially. In case of partial connection of band with intake branch pipe clearance is formed over its outer side between band and branch pipe. In case of horizontal make of hydraulic turbine, band is rigidly connected with foundation. ^ EFFECT: provision of required rigidity and strength of spiral chamber without increasing thickness of its links. ^ 3 cl, 4 dwg |
