Vapour power plant with hermetic turbogenerator

Abstract

The vapour power plant with hermetic turbogenerator is claimed, such plant provided with the main thermal cycle that works with the low boiling point fluid, and characterized by an additional, internal working fluid cycle that serves to lubricate the slide bearings contained in said hermetic turbogenerator, said additional working fluid cycle consisting of the slide bearings supplying piping connected to the main working fluid cycle at the main cycle pump outlet, of the slide bearings housing, of the return piping that directs the main portion of the working fluid liquid from said slide bearing housing to the working fluid buffer container, and of the emergency slide bearings supply piping that connects said working fluid buffer container, through the emergency slide bearing supply pump, with said slide bearings supply piping, whereby non-return valves are provided before connection point of said slide bearings supply piping and said emergency slide bearings supply piping.

1 . A vapour power plant with a hermetically sealed turbogenerator, comprising a main thermal cycle that works with a low boiling point fluid and extends consecutively from a preheater and evaporator through the hermetically sealed turbogenerator consisting of the vapor turbine placed together with the electric generator within a common hermetic casing,
 next through a condenser,   working fluid buffer container,   a main cycle pump and back to said preheater, whereby   said electric generator is cooled with the expanded vapour from the said turbine outlet, and   an inlet of the high pressure working fluid vapour into said common hermetically sealed casing is located in front of said turbine and the outlet of the expanded working fluid vapour is in said common hermetic casing located behind said electric generator,   wherein an additional, internal working fluid cycle that serves to lubricate the slide bearings contained in said hermetic turbogenerator and that consists of the slide bearings supplying piping ( 12 ) connected to the main working fluid cycle at an outlet of said main cycle pump ( 8 ), of the slide bearings housing ( 4 ), of the return piping ( 10 ) that directs the main portion of the working fluid liquid from said slide bearing housing ( 4 ) preferably to said working fluid buffer container ( 14 ), and of the emergency slide bearings supply piping ( 18 ) that connects said working fluid buffer container ( 14 ), through the emergency slide bearing supply pump ( 15 ), with said slide bearings supply piping ( 12 ), whereby said slide bearings supply piping ( 12 ) and said emergency slide bearings supply piping ( 18 ) contain non-return valves ( 16 ) and ( 17 ), respectively.   
     
     
         2 . A method for producing vapour with a hermetic turbogenerator comprising working with a main thermal cycle;
 employing low boiling point fluid; and extending consecutively from a preheater and evaporator through the hermetic turbogenerator;   placing a vapour turbine together with an electric generator within a common hermetic casing, next through the condenser, working fluid buffer container, main cycle pump and back to said preheater;   cooling said electric generator with an expanded vapour from the said turbine outlet and the inlet of the high pressure working fluid vapour into said common hermetic casing which is located in front of said turbine and the outlet of the expanded working fluid vapour is in said common hermetic casing located behind said electric generator, wherein an additional, serving to lubricate the slide bearings contained in said hermetic turbogenerator with an additional internal working fluid cycle;   consisting of slide bearings supplying piping ( 12 ) connected to the main working fluid cycle at the outlet of said main cycle pump ( 8 ), of the slide bearings housing ( 4 ), of the return piping ( 10 );   directing the main portion of the working fluid liquid from said slide bearing housing ( 4 ) preferably to said working fluid buffer container ( 14 ), and of the emergency slide bearings supply piping ( 18 ) that connects said working fluid buffer container ( 14 ), through the emergency slide bearing supply pump ( 15 ), with said slide bearings supply piping ( 12 ), whereby said slide bearings supply piping ( 12 ) and said emergency slide bearings supply piping ( 18 ) contain non-return valves ( 16 ) and ( 17 ), respectively.   
     
     
         3 . The vapour power plant with hermetic turbogenerator, with the main thermal cycle that works with the low boiling point fluid and extends consecutively from the preheater and evaporator through the hermetic turbogenerator consisting of the vapour turbine placed together with the electric generator within a common hermetic casing, next through the condenser, working fluid buffer container, main cycle pump and back to said preheater, whereby said electric generator is cooled with the expanded vapour from the said turbine outlet and the inlet of the high pressure working fluid vapour into said common hermetic casing is located in front of said turbine and the outlet of the expanded working fluid vapour is in said common hermetic casing located behind said electric generator, wherein an additional, internal working fluid cycle that serves to lubricate the slide bearings contained in said hermetic turbogenerator and that consists of the slide bearings supplying piping ( 12 ) connected to the main working fluid cycle at the outlet of said main cycle pump ( 8 ), of the slide bearings housing ( 4 ), of the return piping ( 10 ) that directs the main portion of the working fluid liquid from said slide bearing housing ( 4 ) preferably to said working fluid buffer container ( 14 ), and of the emergency slide bearings supply piping ( 18 ) that connects said working fluid buffer container ( 14 ), through the emergency slide bearing supply pump ( 15 ), with said slide bearings supply piping ( 12 ), whereby said slide bearings supply piping ( 12 ) and said emergency slide bearings supply piping ( 18 ) contain non-return valves ( 16 ) and ( 17 ), respectively.