EP 1567818 B1 20060726 - DEVICE FOR INCREASING THE SERVICE LIFE OF A TUBE-BUNDLE HEAT EXCHANGER IN INDIRECTLY-HEATED UHT UNITS FOR FOODSTUFFS
Title (en)
DEVICE FOR INCREASING THE SERVICE LIFE OF A TUBE-BUNDLE HEAT EXCHANGER IN INDIRECTLY-HEATED UHT UNITS FOR FOODSTUFFS
Title (de)
VORRICHTUNG ZUR VERLÄNGERUNG DER STANDZEIT EINES ROHRBÜNDEL-WÄRMEAUSTAUSCHERS IN INDIREKT BEHEIZTEN UHT-ANLAGEN FÜR NAHRUNGSMITTEL
Title (fr)
DISPOSITIF POUR PROLONGER LA DUREE D'UTILISATION D'UN ECHANGEUR THERMIQUE A FAISCEAU TUBULAIRE DANS DES INSTALLATIONS A ULTRA-HAUTE TEMPERATURE (UHT) POUR PRODUITS ALIMENTAIRES, A CHAUFFAGE INDIRECT
Publication
Application
Priority
- DE 10256232 A 20021202
- EP 0313131 W 20031122
Abstract (en)
[origin: WO2004051174A1] The invention relates to a device for increasing the service life of a tube-bundle heat exchanger in indirectly-heated UHT units for foodstuffs, in particular for milk or milk products, according to the generic part of claim 1. According to the invention, the service life of UHT plants of the inventive type is significantly increased and, as a desired side-effect, the cleaning process optimised and the sterilisation frequency reduced. The above is achieved, whereby the structure surface of the tube inner wall (3a), achieved by means of macro-rough structures (MR) is surface treated by means of an electrochemical polishing method, which generates a micro-surface property (mR), structurally and energetically characterised in a reduced tendency for the adherence of foreign substances, that the incident angle (<) is in the range 35 = ? = 25 degrees and that said inner tubes (3; 3*) are provided in a UHT heater and a subsequent UHT heat retainer.
IPC 8 full level
F28F 1/40 (2006.01); F28F 13/18 (2006.01); F28F 19/00 (2006.01)
CPC (source: EP)
C25F 3/24 (2013.01); F28D 7/16 (2013.01); F28F 1/40 (2013.01); F28F 13/185 (2013.01); F28F 19/00 (2013.01); F28D 2021/0042 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004051174 A1 20040617; AT E334371 T1 20060815; DE 10256232 A1 20040715; DE 10256232 B4 20041021; DE 50304393 D1 20060907; DK 1567818 T3 20061120; DK 1567818 T4 20130819; EP 1567818 A1 20050831; EP 1567818 B1 20060726; EP 1567818 B2 20130717; ES 2268454 T3 20070316; ES 2268454 T5 20131125
DOCDB simple family (application)
EP 0313131 W 20031122; AT 03780029 T 20031122; DE 10256232 A 20021202; DE 50304393 T 20031122; DK 03780029 T 20031122; EP 03780029 A 20031122; ES 03780029 T 20031122