EP 1129789 A1 20010905 - Protection of the water-side surfaces of heat exchangers used in boilers and gas fired water heaters
Title (en)
Protection of the water-side surfaces of heat exchangers used in boilers and gas fired water heaters
Title (de)
Oberflächenschutz der Wasserseiteoberfläche von Wärmeaustauscher von Heizkesseln und Gaswasserheizern
Title (fr)
Protection des surfaces coté eau d'échangeurs de chaleur de chaudières et de chauffe-eau à gaz
Publication
Application
Priority
EP 00200746 A 20000303
Abstract (en)
In order to optimise the performance of boiler exchangers, avoiding the precipitation of calcium and magnesium carbonates, in addition to the fouling of the circuits caused by residual working products or by other foreign matters existing in the water network, while keeping drinkable the sanitary water produced according to the WRC standards, IABER S.p.A. has developed a treatment with particular fluorurated resins for the exchange surfaces. Such resins adhere to metallic surfaces thus creating a few microns thick coating limiting the adhesion of limestone and of the deposits existing in heating circuits. <IMAGE>
IPC 1-7
IPC 8 full level
B05D 5/08 (2006.01); B05D 7/14 (2006.01); B05D 7/22 (2006.01); F28F 19/04 (2006.01)
CPC (source: EP)
B05D 5/083 (2013.01); B05D 7/14 (2013.01); B05D 7/22 (2013.01); F28F 19/04 (2013.01)
Citation (search report)
- [A] US 4125152 A 19781114 - KESTNER MARK O, et al
- [A] US 4588643 A 19860513 - SCHMIDT DONALD L [US], et al
- [A] FR 2476145 A1 19810821 - CRANS FORGES [FR]
- [A] WO 9216310 A1 19921001 - ALFA LAVAL THERMAL [SE]
- [A] US 4344993 A 19820817 - SCHMIDT DONALD L, et al
- [A] US 5562156 A 19961008 - OGAWA HIROMU [JP], et al
- [A] US 4503099 A 19850305 - CHANG FRANKLIN S [US], et al
- [A] WO 9621836 A1 19960718 - DOW CHEMICAL CO [US]
- [A] US 4082140 A 19780404 - ERWIN RANSOME W
- [A] GB 2084486 A 19820415 - BORG WARNER
- [A] PATENT ABSTRACTS OF JAPAN vol. 010, no. 353 (M - 539) 28 November 1986 (1986-11-28)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1129789 A1 20010905; EP 1129789 B1 20060621; AT E330715 T1 20060715; CN 1200778 C 20050511; CN 1348089 A 20020508; DE 60028922 D1 20060803; DE 60028922 T2 20070301; ES 2265862 T3 20070301
DOCDB simple family (application)
EP 00200746 A 20000303; AT 00200746 T 20000303; CN 01111245 A 20010305; DE 60028922 T 20000303; ES 00200746 T 20000303