| 摘要 |
The invention relates to machine-building, in particular to turbine building, and can be used in single-row steam and gas turbines with pressure stages and repetitive supply of working medium. A turbine has a nozzle 1 for supply of fresh working medium, active buckets 2, diaphragm 3, bypass apparatus for sequential supply of working medium from stage to stage and exhaust hood 4. Bypass unit has overflow channels 5, those are fixed on diaphragm 3 and consist of rotary part 6 and outlet part 7, deflectors 8 installed in the rotary part 6. The rotary part 6 is made with profile as curvilinear asymmetric confuser, the output part 7 – with profile as straight asymmetric diffuser with angle of inclination of profile walls that corresponds to inlet angle of the buckets 2. Configuration of the main profile wall of the rotary part 6 is made depending on dimensions of overflow channel 5 at the pressure stage. |
