A lead-in structure and a fixing flange for a turbo generator

Details A lead-in structure and a fixing flange for a turbo generator A lead-in structure and a fixing flange for a turbo generator

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 25/24 (2006.01) F01D 5/04 (2006.01) F01D 9/06 (2006.01) F01D 15/10 (2006.01) F01D 25/26 (2006.01) F02C 6/00 (2006.01)

Patent

CA 2422000

The invention relates to a lead-in structure for coupling of a turbo generator in a circulating process of a circulating medium. The turbo generator comprises a turbine and a generator as well as possibly also a feed pump enclosed in a common casing structure, which casing structure also comprises at least a first duct for hot, steam-like circulating medium entering the turbine, a second duct for circulating medium exiting the turbine, and a third duct for cooled liquid circulating medium, which for example enters the feed pump. The third duct comprises an annular channel which is placed, preferably concentrically, around the second duct, which comprises an annular channel, and the first duct comprises an annular channel which is placed, preferably concentrically, between the second duct and the annular channel of the third duct. The fixing flange applying the lead-in structure may comprise a closing valve which is controlled with a pressurized medium and which is arranged to keep the tubular channel of the second duct normally open and to keep it closed for releasing the casing element, wherein the closing valve is placed inside the tubular channel.

L'invention concerne une structure de fixation permettant de coupler un turbogénérateur dans un processus de circulation d'un média de circulation. Ce turbogénérateur (1) possède une turbine (11) et un générateur (13) ainsi que, éventuellement, une pompe d'approvisionnement (12) incluse dans une structure de logement commune (20, 30), cette structure de logement (20, 30) comportant également au moins un premier conduit (21) pour un média chaud en circulation (8), semblable à de la vapeur, entrant dans la turbine (11), un second conduit (25) permettant de faire circuler le média (9) sortant de la turbine (11), et enfin, un troisième conduit (24) pour le média de circulation liquide refroidi (10a), qui entre par exemple, dans la pompe d'approvisionnement (12). Le troisième conduit (24) comprend un canal annulaire (23) qui sera placé de préférence concentriquement autour du second conduit (25), qui comporte un canal annulaire (26) et le premier conduit (21) comprend un canal annulaire (22) placé de préférence concentriquement entre le second conduit (25) et le canal annulaire (23) du troisième conduit (24). La bride de fixation (20) maintenant la structure de fixation peut également comprendre une soupape de fermeture (28) commandée par un média sous pression et disposée de manière à maintenir le canal tubulaire (26) du second conduit (25) normalement ouvert et à le laisser fermé afin de libérer l'élément de logement (30) dans lequel se trouve la soupape de fermeture (28), à l'intérieur du canal tubulaire (26).

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