| 摘要 |
An integrated regulating bleed device for a steam turbine, comprising a fixed part (11) similar to a diaphragm comprising a lower part (12) of the distributing blading (12, 21) between an inner crown (122) and an outer crown (121) in addition to a moveable part located downstream from said fixed part and forming a regulating disk (15) comprising the upper part (21) of said distributing blading (12,21) between an inner crown(22) and an outer crown (23), whereby said disk can fully, partially or in no way obstruct the downward passage of steam according to the angular position thereof and the regulating disk is subjected to upstream pressure on the surface thereof on the downstream side of the inner (22) and outer (23) crowns. The invention is characterised in that means (114,115) are provided to enable at least one part of the upstream surface of the whole (22,23) formed by the inner (23) and outer crowns (23) of the regulating disk (15) to communicate with the areas located downstream from the upper part (21) of the distributing blading where the downstream pressure (P2) prevails. |
