EP 1407191 B1 20061213 - SAFETY DEVICE FOR BOILER COMPRISING A TIME DELAY PROTECTED BY AN ELECTRONIC CIRCUIT
Title (en)
SAFETY DEVICE FOR BOILER COMPRISING A TIME DELAY PROTECTED BY AN ELECTRONIC CIRCUIT
Title (de)
SICHERHEITSEINRICHTUNG FÜR EINE FEURERUNGSANLAGE MIT EINER VERZÖGERUNGSZEIT DURCH EINE ELEKTRONISCHE SCHALTUNG
Title (fr)
DISPOSITIF DE SECURITE POUR CHAUDIERE COMPRENANT UNE TEMPORISATION SECURISEE PAR UN CIRCUIT ELECTRONIQUE
Publication
Application
Priority
- FR 0201676 W 20020517
- FR 0108988 A 20010706
Abstract (en)
[origin: US7008217B2] A safety device for an industrial boiler (CHA) including electromechanical relays (RE<SUB>n</SUB>, RS), which are connected in series in order to form an electromechanical safety chain (CH 1 ), and at least one shunt relay (RT<SUB>n</SUB>) which is normally open and mounted in parallel to one of the electromechanical relays (RE<SUB>N</SUB>). The shunt relay is controlled by an automaton (AP 1 ) so that it is closed during a time delay. The shunt relay (RT<SUB>n</SUB>) is provided with a contact that is connected to an electronic circuit (CE<SUB>n</SUB>) and said electronic circuit (CE<SUB>n</SUB>) opens an electromechanical relay (RS) which is mounted in series in the safety chain when the shunt relay (RT<SUB>n</SUB>) is closed for longer than the time delay. Given the arrangement, in the event of an automaton failure, the time delay is ensured by the electronic circuit so that a satisfactory level of safety is guaranteed in relation to the installation.
IPC 8 full level
CPC (source: EP US)
F23N 5/206 (2013.01 - EP US); F23N 5/245 (2013.01 - EP US); F23N 2223/22 (2020.01 - EP US); F23N 2227/04 (2020.01 - EP US); F23N 2227/16 (2020.01 - EP US); F23N 2227/18 (2020.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 03004936 A1 20030116; AT E348294 T1 20070115; CA 2453077 A1 20030116; CA 2453077 C 20100119; CN 1255648 C 20060510; CN 1522352 A 20040818; DE 60216763 D1 20070125; DE 60216763 T2 20071004; EP 1407191 A1 20040414; EP 1407191 B1 20061213; FR 2827035 A1 20030110; FR 2827035 B1 20030905; US 2004197720 A1 20041007; US 7008217 B2 20060307
DOCDB simple family (application)
FR 0201676 W 20020517; AT 02738267 T 20020517; CA 2453077 A 20020517; CN 02813379 A 20020517; DE 60216763 T 20020517; EP 02738267 A 20020517; FR 0108988 A 20010706; US 48230704 A 20040604