EP 3848664 A1 20210714 - COMPACT GAS-GAS HEAT EXCHANGE TUBE AND MANUFACTURING AND USE METHODS THEREFOR
Title (en)
COMPACT GAS-GAS HEAT EXCHANGE TUBE AND MANUFACTURING AND USE METHODS THEREFOR
Title (de)
KOMPAKTES GAS-GAS-WÄRMETAUSCHERROHR UND HERSTELLUNG UND VERWENDUNG DAVON
Title (fr)
TUBE D'ÉCHANGE DE CHALEUR GAZ-GAZ COMPACT ET PROCÉDÉS DE FABRICATION ET D'UTILISATION ASSOCIÉS
Publication
Application
Priority
- CN 201811030768 A 20180905
- CN 2019103749 W 20190830
Abstract (en)
The present invention provides a compact gas-gas heat exchange tube. The heat exchange tube includes a heat transfer tube which is configured to separate an in-tube fluid from an out-tube fluid, and achieve, through convection and heat conduction manners, heat transfer between the in-tube fluid and the out-tube fluid; an inner fin set which is configured to expand a heat exchange surface on an inner side of the heat transfer tube, form a micro-channel to separate the in-tube fluid to make the same to axially flow along the heat transfer tube, and produce a turbulence effect and enhance heat convection as well; an outer fin set which is configured to expand a heat exchange surface on an outer side of the heat transfer tube, form a micro-channel to restrict the out-tube fluid from axially and reversely flowing along the heat transfer tube, and produce a turbulence effect and enhance heat convection as well, wherein a hole is provided on each fin of the inner fin set or/and the outer fin set. The present invention further provides methods for manufacturing and using the compact gas-gas heat exchange tube. The present invention realizes complete reverse flow and efficient heat transfer in a limited space and under a heat exchange working condition of a small tube number mean temperature difference, saves a spatial dimension of the apparatus, and reduces a weight of each area as well so as to reduce a total weight and a manufacturing cost.
IPC 8 full level
F28F 1/42 (2006.01)
CPC (source: CN EP KR US)
F28F 1/20 (2013.01 - EP); F28F 1/40 (2013.01 - EP); F28F 1/42 (2013.01 - CN KR); F28F 1/422 (2013.01 - US); F28F 13/12 (2013.01 - KR); F28D 7/16 (2013.01 - EP KR); F28F 2001/428 (2013.01 - CN 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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3848664 A1 20210714; EP 3848664 A4 20211117; CN 109059601 A 20181221; JP 2021535994 A 20211223; KR 102559356 B1 20230724; KR 20210046045 A 20210427; US 2021310752 A1 20211007; WO 2020048401 A1 20200312
DOCDB simple family (application)
EP 19858007 A 20190830; CN 201811030768 A 20180905; CN 2019103749 W 20190830; JP 2021512388 A 20190830; KR 20217008099 A 20190830; US 201917250815 A 20190830