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1. WO2010140175 - ELONGATED HOLLOW MEMBER FOR A CONDENSATION HEAT EXCHANGER OF A GAS CONDENSATION BOILER FOR PRODUCING HOT WATER

Publication Number WO/2010/140175
Publication Date 09.12.2010
International Application No. PCT/IT2009/000245
International Filing Date 05.06.2009
IPC
F24H 1/43 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL
1Water heaters having heat generating means, e.g. boiler, flow-heater, water-storage heater
22Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
40with water tube or tubes
43helically or spirally coiled
F24H 9/00 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL
9Details
CPC
F24H 1/43
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
1Water heaters having heat generating means, e.g. boiler, flow- heater, water-storage heater
22Water heaters other than continuous-flow or water storage heaters, e.g. water-heaters for central heating
40with water tube or tubes
43helically or spirally coiled
F24H 9/0026
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
9Details
0005for water heaters
001Guiding means
0026in combustion gas channels
F28D 7/024
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
7Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
02the conduits being helically coiled
024the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
F28F 1/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
1Tubular elements; Assemblies of tubular elements
02Tubular elements of cross-section which is non-circular
F28F 1/16
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
1Tubular elements; Assemblies of tubular elements
10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
12the means being only outside the tubular element
14and extending longitudinally
16the means being integral with the element, e.g. formed by extrusion
F28F 13/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
13Arrangements for modifying heat-transfer, e.g. increasing, decreasing
06by affecting the pattern of flow of the heat-exchange media
08by varying the cross-section of the flow channels
Applicants
  • ELBI INTERNATIONAL S.p.A. [IT]/[IT] (AllExceptUS)
  • CASIRAGHI, Stefano [IT]/[IT] (UsOnly)
  • CANNAS, Christian [IT]/[IT] (UsOnly)
Inventors
  • CASIRAGHI, Stefano
  • CANNAS, Christian
Agents
  • QUINTERNO, Giuseppe
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) ELONGATED HOLLOW MEMBER FOR A CONDENSATION HEAT EXCHANGER OF A GAS CONDENSATION BOILER FOR PRODUCING HOT WATER
(FR) ÉLÉMENT CREUX ALLONGÉ POUR ÉCHANGEUR DE CHALEUR À CONDENSATION D'UNE CHAUDIÈRE À GAZ À CONDENSATION POUR PRODUIRE DE L'EAU CHAUDE
Abstract
(EN) An elongated hollow member (3) for a condensation heat exchanger (1) for a gas condensation boiler for producing hot water, wherein the water flows in the elongated hollow member (3) and combustion fumes flow about the elongated hollow member (3), is, at least partly, coiled in a helix about a first axis (A1) to form a succession of spaced apart turns (12) defining a gap (2) to be travelled by the combustion fumes, extends along a second axis (A2); and has a tube (16) extending along the second axis (A2), and, at least, two fins (17), which extend along the second axis (A2), protrude from the tube (16), and are so shaped so as to define there between a diverging gap portion (25) of gap (22) in a radial direction with respect to the first axis (A1).
(FR) L'invention concerne un élément creux allongé (3) pour un échangeur de chaleur à condensation (1) pour une chaudière à gaz à condensation pour produire de l'eau chaude, l'eau coulant dans ledit élément creux allongé (3) et des vapeurs de combustion passant autour dudit élément creux allongé (3). Ledit élément est, au moins en partie, enroulé sous forme d'hélice autour d'un premier axe (A1) pour former une succession de tours (12) espacés les uns par rapport aux autres et définissant un espace (2) à parcourir par les vapeurs de combustion, s'étend le long d'un deuxième axe (A2); et comprend un tube (16) qui s'étend le long du deuxième axe (A2), et, au moins, deux ailettes (17), qui s'étendent le long du deuxième axe (A2), sont en saillie par rapport au tube (16), et présentent une forme qui permet de définir entre elles une partie d'espace de déviation (25) de l'espace (22) dans un sens radial par rapport au premier axe (A1).
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