EP 2469211 A3 20140305 - Multitubular heat exchanger
Title (en)
Multitubular heat exchanger
Title (de)
Wärmetauscher mit mehreren Rohrleitungen
Title (fr)
Échangeur thermique à plusieurs tubes
Publication
Application
Priority
JP 2010290129 A 20101227
Abstract (en)
[origin: EP2469211A2] Provided is a heat exchanger including a plurality of inner tubes (114) through which a first fluid passes and an outer tube (117) through which a second fluid passes, the inner tubes (114) including thick tube portions (114a) at both ends, a thin tube portion (114b) at the middle, and a tapered tube portion (114c) between the thin tube portion (114b) and the thick tube portion (114a). Provided is a multitubular heat exchanger for which the inner tubes (114) are in sealed contact at the thick tube portions (114a) and held and integrated by the outer tube (117), so that a second fluid pass-through gap (S) is formed between the outside of each inner tube (114) and the inside of the outer tube (117). The inner tube (114) is tapered at one side in the upper and lower direction of the tapered tube portion (114c), and its surface (bottom surface) to be on the downside when the inner tube (114) is used is provided as a longitudinal flat surface. Thus, the multitubular heat exchanger according to the present invention does not allow forming between the thick tube portion (114a) and the tapered tube portion (114c) a recess portion forming a condensed water pool in the heat exchanger when used.
IPC 8 full level
F28D 7/16 (2006.01); F28D 9/00 (2006.01); F28F 9/00 (2006.01)
CPC (source: EP)
F28D 7/1684 (2013.01); F28D 9/0006 (2013.01); F28D 9/0031 (2013.01); F28F 9/001 (2013.01); F28F 21/083 (2013.01)
Citation (search report)
- [XY] US 2010044019 A1 20100225 - MAEDA TAKAHIRO [JP], et al
- [Y] US 2010319889 A1 20101223 - IKEDA TOORU [JP]
- [X] WO 2006102736 A1 20061005 - DANA CANADA CORP [CA], et al
- [X] US 2008277105 A1 20081113 - GESKES PETER [DE]
- [A] EP 1795854 A1 20070613 - T RAD CO LTD [JP]
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2469211 A2 20120627; EP 2469211 A3 20140305; JP 2012137251 A 20120719
DOCDB simple family (application)
EP 11195749 A 20111227; JP 2010290129 A 20101227