A turbine arrangement and a method of operating a turbine...

F - Mech Eng,Light,Heat,Weapons – 01 – K

Patent

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Details

F01K 21/04 (2006.01) F01K 23/10 (2006.01) F02C 3/30 (2006.01) F02C 6/18 (2006.01)

Patent

CA 2429938

The invention concerns a turbine arrangement comprising a gas turbine unit with a compressor (10), a combustion chamber (12) and a turbine expander (14). The turbine arrangement also has a first unit (20) for heat exchange and steam generation. This first unit (20) receives gas from the turbine expander (14). The first unit (20) comprises a first and a second gas flow path which are at least partly separated from each other. A supplementary combustion unit (32) is arranged to heat the gas in said first gas flow path. Further included is a steam turbine circuit with a steam turbine (30) which is driven with steam generated with the help of the first unit (20). A humidifying device (34) is arranged to add a liquid to a gas from the compressor (10) and a first conduit member (51) conducts humidified gas from the humidifying device (34) to the combustion chamber (12). The first gas conduit member (51) is arranged such that heating of the humidified gas is done with the first unit (20). The invention also concerns a method of operating a gas turbine arrangement.

L'invention concerne un ensemble turbine comprenant une unité turbine à gaz équipée d'un compresseur (10); une chambre de combustion (12) et un turbodétendeur (14). L'ensemble turbine comprend également une première unité (20) destinée à l'échange thermique et à la génération de vapeur. Cette première unité (20) reçoit du gaz provenant du turbodétendeur (14). La première unité (20) comprend un premier et un second passages d'écoulement gazeux qui sont au moins en partie séparés l'un de l'autre. Une unité de combustion supplémentaire (32) est conçue pour chauffer le gaz dans le premier passage d'écoulement gazeux. L'ensemble comprend également un circuit de turbine à vapeur équipé d'une turbine à vapeur (30) commandée à l'aide de la vapeur générée au moyen de la première unité (20). Un dispositif d'humidification (34) est conçu pour ajouter un liquide à un gaz provenant du compresseur (10), un premier élément de conduite de gaz (51) étant conçu de telle sorte que le chauffage du gaz humidifié soit effectué par la première unité (20). Cette invention concerne également un procédé permettant de faire fonctionner un ensemble turbine à gaz.

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