EP 2684003 B1 20151216 - HEAT TRANSFER PIPE FOR HEAT EXCHANGER
Title (en)
HEAT TRANSFER PIPE FOR HEAT EXCHANGER
Title (de)
WÄRMEÜBERTRAGUNGSROHR FÜR WÄRMETAUSCHER
Title (fr)
CONDUIT DE TRANSFERT DE CHALEUR POUR ÉCHANGEUR DE CHALEUR
Publication
Application
Priority
- CN 201110057011 A 20110310
- EP 2011055295 W 20110406
Abstract (en)
[origin: WO2012119661A1] The invention provides a heat transfer pipe for heat exchanger, an inner surface of the heat transfer pipe being provided alternately with a plurality of helical primary teeth (21, 22, 23, 24, 25, 26, 27) and a plurality of grooves (31, 32, 33, 34, 35, 36), each groove being disposed between adjacent primary teeth, wherein a protrusion set is provided in at least one groove (31, 36), the protrusion set comprises a plurality of protrusions (41) sequentially and intermittently disposed in an extending direction of the primary teeth, and each protrusion (41) has a radial height lower than those of the primary teeth, and wherein at least one groove having no protrusion set (32, 33, 34, 35) is provided between the adjacent ones (31, 36) of the grooves each having a protrusion set. In this way, the above heat transfer pipe suppresses significantly increasing flow resistance of a fluid, and is easy to manufacture with low manufacturing cost, at the same time of improving the efficiency of heat exchange.
IPC 8 full level
F28F 1/40 (2006.01); F28F 13/18 (2006.01)
CPC (source: EP KR US)
F15D 1/02 (2013.01 - KR); F28F 1/00 (2013.01 - KR); F28F 1/02 (2013.01 - KR); F28F 1/40 (2013.01 - EP KR US); F28F 13/18 (2013.01 - KR); F28F 13/187 (2013.01 - EP KR US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012119661 A1 20120913; BR 112013022747 A2 20210824; CA 2829013 A1 20120913; CA 2829013 C 20170711; CN 102679791 A 20120919; CN 102679791 B 20150923; EP 2684003 A1 20140115; EP 2684003 B1 20151216; HK 1187978 A1 20140417; JP 2014507626 A 20140327; JP 5961639 B2 20160802; KR 101815437 B1 20180130; KR 20140023301 A 20140226; MX 2013010393 A 20150306; MX 343265 B 20161031; MY 166335 A 20180625; US 2014083668 A1 20140327
DOCDB simple family (application)
EP 2011055295 W 20110406; BR 112013022747 A 20110406; CA 2829013 A 20110406; CN 201110057011 A 20110310; EP 11713248 A 20110406; HK 14100850 A 20140127; JP 2013556977 A 20110406; KR 20137026134 A 20110406; MX 2013010393 A 20110406; MY PI2013701596 A 20110406; US 201114003830 A 20110406