(19)
(11) EP 0 831 280 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.04.1999 Bulletin 1999/16

(43) Date of publication A2:
25.03.1998 Bulletin 1998/13

(21) Application number: 97200361.0

(22) Date of filing: 10.02.1997
(51) International Patent Classification (IPC)6: F24H 1/20
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV RO SI

(30) Priority: 20.09.1996 NL 1004086

(71) Applicant: METAAL VRIES B.V.
NL-9482 TW Tynaarlo (NL)

(72) Inventor:
  • Willemsen, Johannes Albertus Hendrikus
    9482 KZ Tynaarlo (NL)

(74) Representative: Smulders, Theodorus A.H.J., Ir. et al
Vereenigde Octrooibureaux Nieuwe Parklaan 97
2587 BN 's-Gravenhage
2587 BN 's-Gravenhage (NL)

   


(54) Boiler


(57) A boiler with a reservoir (1) and a heating element (3) provided with a guard (12) in the reservoir (1) which screens the heating element (3) at a slight distance therefrom and defines an interspace (13) between the guard (12) and the wall (5) of the heating element (3). The interspace (13) communicates directly with the rest of the interior (2) of the reservoir (1) via passages (14) distributed over the guard (12). The guard constitutes a guide which guides water along the wall, resulting in an intensive, cooling flow along the heating element. As a result, boiling phenomena and lime deposition against the heating element are prevented. The interspace communicates directly with the rest of the interior space of the reservoir, without necessitating an extensive duct system.






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