EP 0524853 B1 19960403 - Safety device for abnormal draught detection for gas fired boiler with natural draught flue
Title (en)
Safety device for abnormal draught detection for gas fired boiler with natural draught flue
Title (de)
Sicherheitsvorrichtung zum Detektieren von anormalem Zug für einen Gaskessel mit einem Rauchgaskanal mit natürlichem Zug
Title (fr)
Dispositif de sécurité détectant une anomalie de tirage pour chaudière à gaz fonctionnant sur conduit de fumée à tirage naturel
Publication
Application
Priority
FR 9109225 A 19910722
Abstract (en)
[origin: EP0524853A1] The boiler comprising a damper mounted above the heating body, so as to form an additional ambient air inlet between the heating body and the damper, via which the boiler is connected to the smoke pipe, the safety device comprises a temperature detector positioned outside the boiler and facing said additional ambient air inlet, the detector thus being swept, when the boiler operates, by the ambient air which is sucked in through the damper into the smoke pipe in order to be mixed with the discharged combustion gases, this detector being designed to cut, by any suitable means such as a deformable element connected to an electric contact, the gas supply to the burner of the boiler, when the temperature detected exceeds a predetermined limit THETA 1 corresponding to an abnormal draught and to reestablish this supply only at the end of a predetermined time t when the temperature in the environment of the detector has fallen to a value THETA 2 corresponding to normal operation of the boiler and the combustion gases which may have escaped into the ambient environment have had the time to be reabsorbed into the smoke pipe in order to be discharged.
IPC 1-7
IPC 8 full level
F23N 5/24 (2006.01); F24H 9/20 (2006.01); F23N 5/04 (2006.01)
CPC (source: EP US)
F23N 5/247 (2013.01 - EP); F24H 9/205 (2013.01 - EP US); F23N 5/04 (2013.01 - EP); F23N 2235/14 (2020.01 - EP)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI NL PT SE
DOCDB simple family (publication)
EP 0524853 A1 19930127; EP 0524853 B1 19960403; AT E136353 T1 19960415; DE 524853 T1 19930609; DE 69209580 D1 19960509; DE 69209580 T2 19960919; ES 2036994 T1 19930616; ES 2036994 T3 19960516; FR 2679627 A1 19930129; FR 2679627 B1 19970627
DOCDB simple family (application)
EP 92401959 A 19920708; AT 92401959 T 19920708; DE 69209580 T 19920708; DE 92401959 T 19920708; ES 92401959 T 19920708; FR 9109225 A 19910722