EP2080962A1 - Side walls of combustion chamber in fin heat exchanger - Google Patents

Side walls of combustion chamber in fin heat exchanger Download PDF

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Publication number
EP2080962A1
EP2080962A1 EP08001005A EP08001005A EP2080962A1 EP 2080962 A1 EP2080962 A1 EP 2080962A1 EP 08001005 A EP08001005 A EP 08001005A EP 08001005 A EP08001005 A EP 08001005A EP 2080962 A1 EP2080962 A1 EP 2080962A1
Authority
EP
European Patent Office
Prior art keywords
side walls
combustion chamber
heat exchanger
lamel
plates
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP08001005A
Other languages
German (de)
French (fr)
Inventor
Tomasz Siemienczuk
Adam Pacholski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AIC SA
Original Assignee
AIC SA
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 AIC SA filed Critical AIC SA
Priority to EP08001005A priority Critical patent/EP2080962A1/en
Publication of EP2080962A1 publication Critical patent/EP2080962A1/en
Withdrawn legal-status Critical Current

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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
    • 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
    • F28F1/24—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 transversely
    • F28F1/26—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 transversely the means being integral with the element
    • F28F1/28—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 transversely the means being integral with the element the element being built-up from finned sections

Definitions

  • the subject of the invention is the side walls of the combustion chamber in a lamel heat exchanger, most advantageous in applications in condensation gas furnaces as a heat exchanger with a closed combustion chamber.
  • Such an example is the construction of a heat exchanger and a combustion chamber made by Randamax B.V, of a plate structure, in which two media flow in the exchanger in parallel layers, divided by corrugated walls.
  • the lamel plates are distanced from each other by means of sealing spacers screwed to each other in a stiff structure with a screw connection creating leaktight side walls for the combustion chamber and the heat exchanger.
  • the essence of the invention is the development of the side walls of a combustion chamber in a lamel heat exchanger to eliminate the above disadvantages.
  • the task was achieved using a solution where the external edges of the lamel plates where formed into an angle, joined inseparably by overlapping and hence creating a leaktight external surface of the side walls of the combustion chamber. Inside the side walls of the combustion chamber are flow channels for the heated medium.
  • the structure of the side walls of the combustion chamber in a lamel heat exchanger eliminates the necessity to build an additional shield for the combustion chamber and the flow channels to eliminate the necessity to install additional thermal insulation, and which ensures achieving very good operational parameters and a high heating efficiency.
  • figure 1 presents the axonometric view of the heat exchanger as well as the side walls
  • figure 2 presents a part of the longitudinal intersection of the inseparable and overlapping connection of the external edges of lamel plates.
  • the lamel heat exchanger including the side walls, as in the invention, is built of lamel plates 1 creating the exchanger packet after connecting.
  • the internal edges of lamel plates 1 define the space of the combustion chamber exchanger 2, of which the side walls in the internal space have the formed flow channels 3 shaped from inseparably joined necks 4 of openings made in the lamel plates 1, creating spaces 5 between the individual lamel plates 1.

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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention solves the problem of construction of the side walls of the heat exchanger, which is characterised by the fact that the external edges of the lamel plates (1) are formed as an inseparably overlapping angle, and creates a leaktight external surface for the side walls of the combustion chamber (2). Inside the side walls of the combustion chamber (2) there are flow channels (3) for the heated medium.

Description

  • The subject of the invention is the side walls of the combustion chamber in a lamel heat exchanger, most advantageous in applications in condensation gas furnaces as a heat exchanger with a closed combustion chamber.
  • In this field of technology there are already some heat exchanging solutions with combustion chambers combining the functions of a primary heat exchanger with that of an economiser function.
  • Such an example is the construction of a heat exchanger and a combustion chamber made by Randamax B.V, of a plate structure, in which two media flow in the exchanger in parallel layers, divided by corrugated walls. In these exchangers the lamel plates are distanced from each other by means of sealing spacers screwed to each other in a stiff structure with a screw connection creating leaktight side walls for the combustion chamber and the heat exchanger.
  • The disadvantage of such a known solution is the possibility of lamel plate deformation as a result of over-tightening of the screws, which unfavourably influences the heat exchange process. Moreover, the screw connections do not guarantee the required connection leaktightness, which at the same time causes the risk of uncontrolled self-unscrewing.
  • The essence of the invention is the development of the side walls of a combustion chamber in a lamel heat exchanger to eliminate the above disadvantages.
  • The task was achieved using a solution where the external edges of the lamel plates where formed into an angle, joined inseparably by overlapping and hence creating a leaktight external surface of the side walls of the combustion chamber. Inside the side walls of the combustion chamber are flow channels for the heated medium.
  • In the solution, according to the invention, the structure of the side walls of the combustion chamber in a lamel heat exchanger eliminates the necessity to build an additional shield for the combustion chamber and the flow channels to eliminate the necessity to install additional thermal insulation, and which ensures achieving very good operational parameters and a high heating efficiency.
  • The subject of the invention is shown as an example in the attached picture, where figure 1 presents the axonometric view of the heat exchanger as well as the side walls, while figure 2 presents a part of the longitudinal intersection of the inseparable and overlapping connection of the external edges of lamel plates.
  • The lamel heat exchanger including the side walls, as in the invention, is built of lamel plates 1 creating the exchanger packet after connecting. The internal edges of lamel plates 1 define the space of the combustion chamber exchanger 2,of which the side walls in the internal space have the formed flow channels 3 shaped from inseparably joined necks 4 of openings made in the lamel plates 1, creating spaces 5 between the individual lamel plates 1.

Claims (1)

  1. The side walls of the combustion chamber in a lamel heat exchanger formed from lamel plates creating a heat exchanger packet, being an integrated heat exchanging surface, is significant in the fact that the external edges of the lamel plates (1) shaped into an angle, are joined inseparably by overlapping, and hence creating a leaktight external surface for the side walls of the combustion chamber (2) and inside the side walls of the combustion chamber (2) there are flow channels (3) for the heated medium.
EP08001005A 2008-01-20 2008-01-20 Side walls of combustion chamber in fin heat exchanger Withdrawn EP2080962A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08001005A EP2080962A1 (en) 2008-01-20 2008-01-20 Side walls of combustion chamber in fin heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08001005A EP2080962A1 (en) 2008-01-20 2008-01-20 Side walls of combustion chamber in fin heat exchanger

Publications (1)

Publication Number Publication Date
EP2080962A1 true EP2080962A1 (en) 2009-07-22

Family

ID=39580356

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08001005A Withdrawn EP2080962A1 (en) 2008-01-20 2008-01-20 Side walls of combustion chamber in fin heat exchanger

Country Status (1)

Country Link
EP (1) EP2080962A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102287906A (en) * 2011-07-29 2011-12-21 北京北机机电工业有限责任公司 Compact primary surface heat exchanger for fuel oil and fuel gas heater
US8720387B2 (en) 2010-10-01 2014-05-13 Aic S.A. Heat exchanger
EP2698589A3 (en) * 2012-08-13 2014-08-20 Aic S.A. Heat exchanger pack
US8813688B2 (en) 2010-12-01 2014-08-26 Aic S.A. Heat exchanger

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE681176C (en) * 1938-04-05 1939-09-16 Eduard Ahlborn Akt Ges Heat exchanger, consisting of a number of sheets placed on top of one another and clamped together
NL8802695A (en) * 1988-11-03 1990-06-01 Rendamax Bv Plate-type heat exchanger - has hollow distance-pieces between plates forming conduits for medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE681176C (en) * 1938-04-05 1939-09-16 Eduard Ahlborn Akt Ges Heat exchanger, consisting of a number of sheets placed on top of one another and clamped together
NL8802695A (en) * 1988-11-03 1990-06-01 Rendamax Bv Plate-type heat exchanger - has hollow distance-pieces between plates forming conduits for medium

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8720387B2 (en) 2010-10-01 2014-05-13 Aic S.A. Heat exchanger
US8813688B2 (en) 2010-12-01 2014-08-26 Aic S.A. Heat exchanger
CN102287906A (en) * 2011-07-29 2011-12-21 北京北机机电工业有限责任公司 Compact primary surface heat exchanger for fuel oil and fuel gas heater
CN102287906B (en) * 2011-07-29 2013-08-14 北京北机机电工业有限责任公司 Compact primary surface heat exchanger for fuel oil and fuel gas heater
EP2698589A3 (en) * 2012-08-13 2014-08-20 Aic S.A. Heat exchanger pack

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