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EP2123991A1 - Fired heat exchanger - Google Patents

Fired heat exchanger Download PDF

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Publication number
EP2123991A1
EP2123991A1 EP08009326A EP08009326A EP2123991A1 EP 2123991 A1 EP2123991 A1 EP 2123991A1 EP 08009326 A EP08009326 A EP 08009326A EP 08009326 A EP08009326 A EP 08009326A EP 2123991 A1 EP2123991 A1 EP 2123991A1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
panel plates
heat exchange
stage
working
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.)
Granted
Application number
EP08009326A
Other languages
German (de)
French (fr)
Other versions
EP2123991B1 (en
Inventor
Tomasz Siemienczuk
Lukasz BADZIAGOWSKI
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 AT08009326T priority Critical patent/ATE543055T1/en
Priority to EP08009326A priority patent/EP2123991B1/en
Priority to PL08009326T priority patent/PL2123991T3/en
Priority to DK08009326.3T priority patent/DK2123991T3/en
Priority to ES08009326T priority patent/ES2381216T3/en
Publication of EP2123991A1 publication Critical patent/EP2123991A1/en
Application granted granted Critical
Publication of EP2123991B1 publication Critical patent/EP2123991B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/30—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle being built up from sections
    • F24H1/32—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle being built up from sections with vertical sections arranged side by side

Definitions

  • the invention described here is a fired heat exchanger designed to be best used in boilers and pre-heaters.
  • the invention for a fired heat exchanger described here contains a modular block constituting a set of inseparably interconnected panel plates with a combustion chamber located in its upper internal part.
  • This layout ensures full integration of the combustion chamber with the working heat exchange surface located in the lower part of the panel plates.
  • the working heat exchange surface is created by the lower lateral sides of the panel plates and the chattered lamella bands mounted on them.
  • the bands expand the working heat exchange surface and the gasses created in the combustion chamber flow around this surface.
  • the circulation of the liquid heated medium in the unit of interconnected panel plates has a flow velocity of the medium within the range of 0.5 - 2 m/s and is of a two-stage type. During the first stage, the main process of heat exchange on the working surface takes place. During the second stage, the combustion chamber is cooled by the water jacket, constituting the upper part of panel plates.
  • the structure of the fired heat exchanger ensures full integration of the combustion chamber with the working heat exchange surface, which provides effective cooling for the combustion chamber and a simple compact build obviating the need for additional closing elements.
  • High thermal efficiency has been achieved by means of specially shaped chattered lamella bands filling the space between panel plates expanding the working heat exchange surface, which provides the possibility for combustion product condensation and turbulence.
  • the vital advantage of this solution is the high heat exchange surface to weight ratio.
  • This new invention facilitates power scaling by adding or removing additional panel plates and utilising a condensation technique enabling the unit to use less fuel and emit smaller amounts of detrimental compounds to the air. Thanks to this, the device is ecologically efficient. Another important advantage of this solution is the simplified production technology with the possibility of using full automation.
  • fig. 1 shows the perspective view of the fired heat exchanger with a partial pre-installation setting-up of the heat exchanger part
  • Fig. 2 shows the perspective view of the heat exchanger elements set which, having been connected, create a lamella plate together with a chattered lamella band mounted on the lateral surface
  • Fig. 3 shows the axonometric view of the lamella plate together with the chattered lamella band.
  • the invented fired heat exchanger described in this document contains a modular block constituting a set of inseparably interconnected panel plates (1) with a combustion chamber water jacket located in its upper part (2) and the working heat exchange surface in the lower part. These surfaces create the lower lateral surfaces of the panel plates (1) together with the chattered lamella bands mounted on them (3). They expand the working heat exchange surface and the gasses created in the combustion chamber flow around this surface.
  • the circulation of the liquid heated medium in the unit of interconnected panel plates has s flow velocity with a medium within the range 0.5 - 2 m/s. It is a two-stage type: during the first stage, the main process of heat exchange on the working surface takes place, while during the second stage, the combustion chamber (2) is cooled by the water jacket constituting the upper part of the panel plates (1).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Air Supply (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

The fired heat exchanger is characterised by the fact that it contains a modular block constituting a set of inseparably interconnected panel plates (1) with a combustion chamber located in its upper internal part (2) ensuring full integration of the combustion chamber (2) with the working heat exchange surface located in the lower part of the panel plates (1). This surface is created by the lower lateral surfaces of the panel plates (1) together with chattered lamella bands mounted on them (3). They expand the working heat exchange surface and the gasses created in the combustion chamber (2) flow around this surface. The circulation of the liquid heated medium in the unit of interconnected panel plates (1) has a medium flow velocity within the range 0.5 - 2 m/s and is of a two-stage type. During the first stage, the main process of heat exchange on the working surface takes place. During the second stage, the combustion chamber (2) is cooled by the water jacket constituting the upper part of the panel plates (1).

Description

  • The invention described here is a fired heat exchanger designed to be best used in boilers and pre-heaters.
  • Taking into account the current state of technology, there are well-known and widely utilised fired heat exchanger solutions where the combustion chambers and working surfaces for heat exchange consist of multiple elements, which makes their structure more complicated, rendering their construction and installation difficult. This solution results in a lower heat exchange surface to weight ratio and larger overall dimensions while maintaining the same heat exchanger rate.
  • An example of such a solution is a heat exchanger manufactured by the German Viessman company. Its structure features a cylindrical casing combustion chamber to which specially chattered plates have been welded. These plates constitute the working heat exchange surface creating reciprocally parallel layers separated from each other. The media taking part in the heat exchange process flow around the layers in a countercurrent direction.
  • Another disadvantage of this current solution is the necessity to weld the plates to the combustion chamber in order to ensure their full integration. Moreover, the whole structure must also be housed in a specially designed casing in order to ensure sealing and properly directed flow of the medium among the plates.
  • The invention for a fired heat exchanger described here contains a modular block constituting a set of inseparably interconnected panel plates with a combustion chamber located in its upper internal part. This layout ensures full integration of the combustion chamber with the working heat exchange surface located in the lower part of the panel plates. The working heat exchange surface is created by the lower lateral sides of the panel plates and the chattered lamella bands mounted on them. The bands expand the working heat exchange surface and the gasses created in the combustion chamber flow around this surface. The circulation of the liquid heated medium in the unit of interconnected panel plates has a flow velocity of the medium within the range of 0.5 - 2 m/s and is of a two-stage type. During the first stage, the main process of heat exchange on the working surface takes place. During the second stage, the combustion chamber is cooled by the water jacket, constituting the upper part of panel plates.
  • According to the invention, the structure of the fired heat exchanger ensures full integration of the combustion chamber with the working heat exchange surface, which provides effective cooling for the combustion chamber and a simple compact build obviating the need for additional closing elements. High thermal efficiency has been achieved by means of specially shaped chattered lamella bands filling the space between panel plates expanding the working heat exchange surface, which provides the possibility for combustion product condensation and turbulence. The vital advantage of this solution is the high heat exchange surface to weight ratio.
  • This new invention facilitates power scaling by adding or removing additional panel plates and utilising a condensation technique enabling the unit to use less fuel and emit smaller amounts of detrimental compounds to the air. Thanks to this, the device is ecologically efficient. Another important advantage of this solution is the simplified production technology with the possibility of using full automation.
  • The invention is shown pictorially, where fig. 1 shows the perspective view of the fired heat exchanger with a partial pre-installation setting-up of the heat exchanger part, while Fig. 2 shows the perspective view of the heat exchanger elements set which, having been connected, create a lamella plate together with a chattered lamella band mounted on the lateral surface. Fig. 3 shows the axonometric view of the lamella plate together with the chattered lamella band.
  • The invented fired heat exchanger described in this document contains a modular block constituting a set of inseparably interconnected panel plates (1) with a combustion chamber water jacket located in its upper part (2) and the working heat exchange surface in the lower part. These surfaces create the lower lateral surfaces of the panel plates (1) together with the chattered lamella bands mounted on them (3). They expand the working heat exchange surface and the gasses created in the combustion chamber flow around this surface. The circulation of the liquid heated medium in the unit of interconnected panel plates has s flow velocity with a medium within the range 0.5 - 2 m/s. It is a two-stage type: during the first stage, the main process of heat exchange on the working surface takes place, while during the second stage, the combustion chamber (2) is cooled by the water jacket constituting the upper part of the panel plates (1).

Claims (1)

  1. The fired heat exchanger is characterised by the fact that it contains a modular block constituting a set of inseparably interconnected panel plates (1) with a combustion chamber located in its upper internal part (2) ensuring full integration of the combustion chamber (2) with the working heat exchange surface located in the lower part of the panel plates (1). This surface is created by the lower lateral surfaces of the panel plates (1) together with chattered lamella bands mounted on them (3). They expand the working heat exchange surface and the gasses created in the combustion chamber (2) flow around this surface. The circulation of the liquid heated medium in the unit of interconnected panel plates (1) has a medium flow velocity within the range 0.5 - 2 m/s and is of a two-stage type. During the first stage, the main process of heat exchange on the working surface takes place. During the second stage, the combustion chamber (2) is cooled by the water jacket constituting the upper part of the panel plates (1).
EP08009326A 2008-05-20 2008-05-20 Fired heat exchanger Active EP2123991B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT08009326T ATE543055T1 (en) 2008-05-20 2008-05-20 HEAT EXCHANGER WITH COMBUSTION CHAMBER
EP08009326A EP2123991B1 (en) 2008-05-20 2008-05-20 Fired heat exchanger
PL08009326T PL2123991T3 (en) 2008-05-20 2008-05-20 Fired heat exchanger
DK08009326.3T DK2123991T3 (en) 2008-05-20 2008-05-20 Combustion heat exchanger
ES08009326T ES2381216T3 (en) 2008-05-20 2008-05-20 Heat exchanger with combustion chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08009326A EP2123991B1 (en) 2008-05-20 2008-05-20 Fired heat exchanger

Publications (2)

Publication Number Publication Date
EP2123991A1 true EP2123991A1 (en) 2009-11-25
EP2123991B1 EP2123991B1 (en) 2012-01-25

Family

ID=40671035

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08009326A Active EP2123991B1 (en) 2008-05-20 2008-05-20 Fired heat exchanger

Country Status (5)

Country Link
EP (1) EP2123991B1 (en)
AT (1) ATE543055T1 (en)
DK (1) DK2123991T3 (en)
ES (1) ES2381216T3 (en)
PL (1) PL2123991T3 (en)

Cited By (3)

* 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
WO2016010500A1 (en) * 2014-07-16 2016-01-21 Zümrüt Ali Combi boiler with heat exchanger

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2090501A7 (en) * 1970-04-04 1972-01-14 Riello Pilade
NL8802695A (en) * 1988-11-03 1990-06-01 Rendamax Bv Plate-type heat exchanger - has hollow distance-pieces between plates forming conduits for medium
EP1184628A2 (en) 2000-09-02 2002-03-06 Robert Bosch Gmbh Heat exchanger for a boiler, especially for a condensing boiler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2090501A7 (en) * 1970-04-04 1972-01-14 Riello Pilade
NL8802695A (en) * 1988-11-03 1990-06-01 Rendamax Bv Plate-type heat exchanger - has hollow distance-pieces between plates forming conduits for medium
EP1184628A2 (en) 2000-09-02 2002-03-06 Robert Bosch Gmbh Heat exchanger for a boiler, especially for a condensing boiler

Cited By (3)

* 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
WO2016010500A1 (en) * 2014-07-16 2016-01-21 Zümrüt Ali Combi boiler with heat exchanger

Also Published As

Publication number Publication date
PL2123991T3 (en) 2012-07-31
DK2123991T3 (en) 2012-05-21
EP2123991B1 (en) 2012-01-25
ES2381216T3 (en) 2012-05-24
ATE543055T1 (en) 2012-02-15

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