(19)
(11) EP 0 187 542 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.09.1987 Bulletin 1987/36

(43) Date of publication A2:
16.07.1986 Bulletin 1986/29

(21) Application number: 85309545

(22) Date of filing: 30.12.1985
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 04.01.1985 US 688945

(71) Applicant: THE BABCOCK & WILCOX COMPANY
 ()

(72) Inventors:
  • Lieb, Carl
     ()
  • Mullinax, Jerry L.
     ()

   


(54) Spiral to vertical furnace tube transition


(57) A furnace for a once-through steam generator comprises a lower section of inclined tubes (13), an upper section of vertical tubes (15) and a support system in a transition zone intermediate the sections. The support system comprises support straps (22) supported on finger plates (30) whereby the lower inclined tubes (13) are supported by the upper, vertical tubes (15). The upper section of vertical tubes (15) overlaps the lower section of inclined tubes (13).






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