(19)
(11) EP 2 256 405 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.03.2011 Bulletin 2011/11

(43) Date of publication A2:
01.12.2010 Bulletin 2010/48

(21) Application number: 09163632.4

(22) Date of filing: 24.06.2009
(51) International Patent Classification (IPC): 
F22B 7/04(2006.01)
F22B 7/08(2006.01)
 F22B 7/06(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

(30) Priority: 25.06.2008 IT MI20081145

(71) Applicant: TEP Tecnologie per l'Energia Pulita S.r.l.
56126 Pisa (PI) (IT)

(72) Inventors:
  • Giglioli, Romano
    56126 Pisa (PI) (IT)
  • Cellini, Aldo
    56126 Pisa (PI) (IT)
  • Paganucci, Fabrizio
    56126 Pisa (PI) (IT)

(74) Representative: Pezzoli, Ennio et al
c/o Maccalli & Pezzoli S.r.l. Via Settembrini 40
20124 Milano
20124 Milano (IT)

   


(54) Boiler for electrical generator based on external boiler with improved yield


(57) A boiler (236) for an electrical generator (203) of the external-boiler type is proposed. The boiler includes a furnace (242) for producing heat through combustion of a fuel. The boiler is provided with an input (315) for receiving a process fluid. A heat exchanger (248) causes the process fluid to flow close to the furnace (so that it is heated by the heat produced by the furnace). The boiler is also provided with an output (320) for supplying the heated process fluid to the electrical generator. In the solution according to an embodiment of the invention, the heat exchanger includes a plurality of ducts (415-435) being connected in parallel between the input and the output (for partitioning the flow of the process fluid); the ducts are arranged as a tunnel (430-435) around the furnace along a flow direction (245) of combustion smokes being produced by the furnace.







Search report