EP 2133634 B1 20150401 - Fire heat exchanger for liquid heaters
Title (en)
Fire heat exchanger for liquid heaters
Title (de)
Feuerhitzeaustauscher für Flüssigkeitserhitzer
Title (fr)
Échangeur à feu nu pour chauffages de liquides
Publication
Application
Priority
EP 08010795 A 20080611
Abstract (en)
[origin: EP2133634A1] The fired heat exchanger's design is characterised by the fact that it contains a spiral tubular heat exchanger (1) with a heated liquid medium where each coil of the tube in the cross-section has a point contact with adjacent tube coils creating, after their inseparable thermal linear integration, a uniform surface of the combustion chamber (2) together with the heat medium flow chamber (3) in the further part of the unit. There is also a tubular multi-chamber core (4) inside the spiral tubular heat exchanger (1) whose internal surface features radially distributed plate lamella elements (5) inseparably fitted on the external surface of the core, thanks to which a maze-like heating medium stream flow system is achieved. The internal shape of the tubular multi-chamber core (4) directs the air stream to flow around all its internal surfaces, which prevents the tubular multi-chamber core walls (4) from overheating. At the same time, the air used in later thermal processes of liquid heating is heated as well.
IPC 8 full level
CPC (source: EP)
F24H 1/43 (2013.01); F24H 9/0026 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 08010795 A 20080611