WO2011057895A8 - Heat exchanger with improved thermal efficiency - Google Patents

Heat exchanger with improved thermal efficiency Download PDF

Info

Publication number
WO2011057895A8
WO2011057895A8 PCT/EP2010/066277 EP2010066277W WO2011057895A8 WO 2011057895 A8 WO2011057895 A8 WO 2011057895A8 EP 2010066277 W EP2010066277 W EP 2010066277W WO 2011057895 A8 WO2011057895 A8 WO 2011057895A8
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
fluid
thermal efficiency
improved thermal
coiled duct
Prior art date
Application number
PCT/EP2010/066277
Other languages
French (fr)
Other versions
WO2011057895A1 (en
Inventor
Mario Morini
Original Assignee
Unical Ag S.P.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unical Ag S.P.A. filed Critical Unical Ag S.P.A.
Priority to EP10768981.2A priority Critical patent/EP2499437B1/en
Publication of WO2011057895A1 publication Critical patent/WO2011057895A1/en
Publication of WO2011057895A8 publication Critical patent/WO2011057895A8/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F24H1/43—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/14—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically both tubes being bent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/16—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
    • F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F28F1/422—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element with outside means integral with the tubular element and inside means integral with the tubular element

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

A heat exchanger (1) with improved thermal efficiency comprising a container body (2) crossed by a forced flow of hot fluid (7) and at least one coiled duct (3) crossed internally by at least one fluid to be heated (6), the coiled duct (3) being accommodated inside the container body (2) and being struck by the hot fluid (7) in order to heat the fluid to be heated (6), the heat exchanger comprising a plurality of fins (30) which are formed on the outer surface of the coiled duct (3) and which run substantially along the entire longitudinal length of the coiled duct (3) in order to guide the hot fluid (7) along the coiled duct (3) so as to increase the heat exchange between the hot fluid (7) and the fluid to be heated (6).
PCT/EP2010/066277 2009-11-12 2010-10-27 Heat exchanger with improved thermal efficiency WO2011057895A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10768981.2A EP2499437B1 (en) 2009-11-12 2010-10-27 Heat exchanger with improved thermal efficiency

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2009A001983A IT1396923B1 (en) 2009-11-12 2009-11-12 HEAT EXCHANGER WITH INCREASED THERMAL EFFICIENCY.
ITMI2009A001983 2009-11-12

Publications (2)

Publication Number Publication Date
WO2011057895A1 WO2011057895A1 (en) 2011-05-19
WO2011057895A8 true WO2011057895A8 (en) 2011-07-07

Family

ID=42167572

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/066277 WO2011057895A1 (en) 2009-11-12 2010-10-27 Heat exchanger with improved thermal efficiency

Country Status (3)

Country Link
EP (1) EP2499437B1 (en)
IT (1) IT1396923B1 (en)
WO (1) WO2011057895A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015015335A1 (en) * 2015-11-26 2017-06-01 Linde Aktiengesellschaft Latent heat storage, method and heating arrangement
CN114659393B (en) * 2022-03-23 2023-07-18 江苏庆峰工程集团有限公司 Heat exchange system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2209325C3 (en) * 1970-05-18 1978-08-03 Noranda Metal Industries Inc., Bellingham, Wash. (V.St.A.) Heat exchange tube
GB2228563A (en) * 1989-02-28 1990-08-29 Michael John Nunnerley Heat exchange system
WO2000058682A1 (en) * 1999-03-31 2000-10-05 Asea Brown Boveri Limited Heat exchanger
EP1750070B1 (en) * 2005-08-05 2012-05-30 ELBI International S.p.A. Gas boiler provided with a heat exchanger with finned tube and method of producing the same

Also Published As

Publication number Publication date
EP2499437B1 (en) 2018-05-02
ITMI20091983A1 (en) 2011-05-13
WO2011057895A1 (en) 2011-05-19
EP2499437A1 (en) 2012-09-19
IT1396923B1 (en) 2012-12-20

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