EP2133634A1 - Fire heat exchanger for liquid heaters - Google Patents

Fire heat exchanger for liquid heaters Download PDF

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Publication number
EP2133634A1
EP2133634A1 EP08010795A EP08010795A EP2133634A1 EP 2133634 A1 EP2133634 A1 EP 2133634A1 EP 08010795 A EP08010795 A EP 08010795A EP 08010795 A EP08010795 A EP 08010795A EP 2133634 A1 EP2133634 A1 EP 2133634A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
chamber
core
tubular
heated
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
EP08010795A
Other languages
German (de)
French (fr)
Other versions
EP2133634B1 (en
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 EP20080010795 priority Critical patent/EP2133634B1/en
Publication of EP2133634A1 publication Critical patent/EP2133634A1/en
Application granted granted Critical
Publication of EP2133634B1 publication Critical patent/EP2133634B1/en
Not-in-force 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
    • F24H1/40—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
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0026—Guiding means in combustion gas channels

Definitions

  • the invention described here is a fired heat exchanger for liquid heaters designed to be best utilised in throughflow water heaters.
  • the invention features a solution where the fired heat exchanger for liquid heaters is equipped with a spiral tubular heat exchanger with a heated liquid medium whose each coil in the cross-section has a point contact with adjacent tube coils. After their inseparable thermal linear integration, a uniform surface of the combustion chamber is created together with the heat medium flow chamber in the further part of the unit.
  • a tubular multi-chamber core inside the spiral tubular heat exchanger.
  • the internal shape of the tubular multi-chamber core directs the air stream to flow around all its internal surfaces, which prevents the core from overheating. At the same time, the air, to be used in later thermal processes for liquid heating, is heated as well.
  • the invention features a solution where the construction of the fired heat exchanger for liquid heaters makes it possible to lower the exhaust gas temperature below the dew-point, which results in condensation of moisture contained in the exhaust gases, which, in turn, has a favourable ecological effect.
  • Another advantage of this solution is the possibility of fitting the latest generation burners to the heat exchanger, which enables their users to optimally minimise the emission of detrimental combustion products to the air.
  • the design of the invention facilitates gaining very favourable operational parameters and a high degree of thermal efficiency. Additional features are a simple, compact and light housing and the ease of operation.
  • FIG. 1 An example of the subject of the invention is shown in the picture attached. It depicts a fired heat exchanger for liquid heaters in the axonometric view with a broken-out section of the side part of the device featuring a view of the internal structure.
  • the fired heat exchanger for liquid heaters is built from a spiral tubular heat exchanger (1) which heats the liquid medium.
  • each coil of the tube in the cross-section has a point contact with adjacent tube coils.
  • a uniform surface of the combustion chamber (2) is created together with the heat medium flow chamber (3) in the further part of the unit.
  • the internal shape of the tubular multi-chamber core (4) directs the air stream to flow around all its internal surfaces, which prevents the core walls from overheating. At the same time, the air used in later thermal processes of liquid heating is heated as well.

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

Abstract

The fired heat exchanger's design is characterised by the fact that it contains a spiral tubular heat exchanger (1) with a heated liquid medium where each coil of the tube in the cross-section has a point contact with adjacent tube coils creating, after their inseparable thermal linear integration, a uniform surface of the combustion chamber (2) together with the heat medium flow chamber (3) in the further part of the unit. There is also a tubular multi-chamber core (4) inside the spiral tubular heat exchanger (1) whose internal surface features radially distributed plate lamella elements (5) inseparably fitted on the external surface of the core, thanks to which a maze-like heating medium stream flow system is achieved. The internal shape of the tubular multi-chamber core (4) directs the air stream to flow around all its internal surfaces, which prevents the tubular multi-chamber core walls (4) from overheating. At the same time, the air used in later thermal processes of liquid heating is heated as well.

Description

  • The invention described here is a fired heat exchanger for liquid heaters designed to be best utilised in throughflow water heaters.
  • Taking into account the current level of technology, well-known and widely utilised water heater solutions are characterised by a heat exchange rate whose outlet gas temperature is so high that it makes it impossible for the process of condensation of steam in exhaust gases to occur. This effect lowers the heat exchanger efficiency rate together with other operational parameters. Moreover, burners used in current solutions do not always facilitate the process of lowering the content of detrimental combustion products, which adversely influence the natural environment.
  • The invention features a solution where the fired heat exchanger for liquid heaters is equipped with a spiral tubular heat exchanger with a heated liquid medium whose each coil in the cross-section has a point contact with adjacent tube coils. After their inseparable thermal linear integration, a uniform surface of the combustion chamber is created together with the heat medium flow chamber in the further part of the unit. There is a tubular multi-chamber core inside the spiral tubular heat exchanger. There are radially distributed plate lamella elements inseparably fitted on the external surface of the core, thanks to which a maze-like heating medium stream flow system is achieved. The internal shape of the tubular multi-chamber core directs the air stream to flow around all its internal surfaces, which prevents the core from overheating. At the same time, the air, to be used in later thermal processes for liquid heating, is heated as well.
  • The invention features a solution where the construction of the fired heat exchanger for liquid heaters makes it possible to lower the exhaust gas temperature below the dew-point, which results in condensation of moisture contained in the exhaust gases, which, in turn, has a favourable ecological effect. Another advantage of this solution is the possibility of fitting the latest generation burners to the heat exchanger, which enables their users to optimally minimise the emission of detrimental combustion products to the air. The design of the invention facilitates gaining very favourable operational parameters and a high degree of thermal efficiency. Additional features are a simple, compact and light housing and the ease of operation.
  • An example of the subject of the invention is shown in the picture attached. It depicts a fired heat exchanger for liquid heaters in the axonometric view with a broken-out section of the side part of the device featuring a view of the internal structure.
  • The fired heat exchanger for liquid heaters is built from a spiral tubular heat exchanger (1) which heats the liquid medium. In the spiral tubular heat exchanger (1) each coil of the tube in the cross-section has a point contact with adjacent tube coils. After their inseparable thermal linear integration (e.g. by means of a soldering technique), a uniform surface of the combustion chamber (2) is created together with the heat medium flow chamber (3) in the further part of the unit. There is a tubular multi-chamber core (4) inside the spiral tubular heat exchanger (1). There are radially distributed plate lamella elements (5) inseparably fitted (e.g. by means of a soldering technique) on the external surface of the core, thanks to which a maze-like heating medium stream flow system is achieved. The internal shape of the tubular multi-chamber core (4) directs the air stream to flow around all its internal surfaces, which prevents the core walls from overheating. At the same time, the air used in later thermal processes of liquid heating is heated as well.

Claims (1)

1. The fired heat exchanger for liquid heaters is designed to work with a burner (e.g. a gas burner) and its construction is characterised by the fact that it contains a spiral tubular heat exchanger (1) with a heated liquid medium where each coil of the tube in the cross-section has a point contact with adjacent tube coils creating, after their inseparable thermal linear integration, a uniform surface of combustion chamber (2) together with the heat medium flow chamber (3) in the further part of the unit. There is also a tubular multi-chamber core (4) inside the spiral tubular heat exchanger (1) whose internal surface features radially distributed plate lamella elements (5) inseparably fitted on the external surface of the core, thanks to which a maze-like heating medium stream flow system is achieved and the internal shape of the tubular multi-chamber core (4) directs the air stream to flow around all its internal surfaces, which prevents the tubular multi-chamber core walls (4) from overheating. At the same time, the air used in later thermal processes of liquid heating is heated as well.
EP20080010795 2008-06-11 2008-06-11 Fire heat exchanger for liquid heaters Not-in-force EP2133634B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20080010795 EP2133634B1 (en) 2008-06-11 2008-06-11 Fire heat exchanger for liquid heaters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20080010795 EP2133634B1 (en) 2008-06-11 2008-06-11 Fire heat exchanger for liquid heaters

Publications (2)

Publication Number Publication Date
EP2133634A1 true EP2133634A1 (en) 2009-12-16
EP2133634B1 EP2133634B1 (en) 2015-04-01

Family

ID=40076710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080010795 Not-in-force EP2133634B1 (en) 2008-06-11 2008-06-11 Fire heat exchanger for liquid heaters

Country Status (1)

Country Link
EP (1) EP2133634B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2444678C1 (en) * 2011-03-14 2012-03-10 Дмитрий Львович Астановский Installation for burning fuel heating processing media
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
RU2601081C1 (en) * 2015-09-15 2016-10-27 Алексей Алексеевич Сердюков External boiler
WO2020133959A1 (en) * 2018-12-26 2020-07-02 浙江广涛卫厨有限公司 Heat exchange pipe
WO2020133958A1 (en) * 2018-12-26 2020-07-02 浙江广涛卫厨有限公司 New heat exchange tube

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1052256A (en) * 1952-03-10 1954-01-22 Caliqua Soc Improvements to heating devices for a liquid or gaseous fluid
EP0146976A1 (en) * 1983-11-24 1985-07-03 Remeha Fabrieken B.V. A heating boiler having a vertical burner tube
DE9101375U1 (en) * 1991-02-07 1991-07-11 Mann, Wilhelm, Dipl.-Ing., 6301 Allendorf Combustion chamber insert for boilers with forced draught burners
EP0825392A2 (en) * 1996-08-23 1998-02-25 Wolf GmbH Heat exchanger for a boiler,esp.for a wall mounted gas fired boiler
EP0845640A1 (en) * 1996-11-28 1998-06-03 Nefit Fasto B.V. Cylindrical heating installation with helical heat exchanger
EP1431697A2 (en) * 2002-12-20 2004-06-23 Robert Bosch Gmbh Heat exchange unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1052256A (en) * 1952-03-10 1954-01-22 Caliqua Soc Improvements to heating devices for a liquid or gaseous fluid
EP0146976A1 (en) * 1983-11-24 1985-07-03 Remeha Fabrieken B.V. A heating boiler having a vertical burner tube
DE9101375U1 (en) * 1991-02-07 1991-07-11 Mann, Wilhelm, Dipl.-Ing., 6301 Allendorf Combustion chamber insert for boilers with forced draught burners
EP0825392A2 (en) * 1996-08-23 1998-02-25 Wolf GmbH Heat exchanger for a boiler,esp.for a wall mounted gas fired boiler
EP0845640A1 (en) * 1996-11-28 1998-06-03 Nefit Fasto B.V. Cylindrical heating installation with helical heat exchanger
EP1431697A2 (en) * 2002-12-20 2004-06-23 Robert Bosch Gmbh Heat exchange unit

Cited By (6)

* 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
RU2444678C1 (en) * 2011-03-14 2012-03-10 Дмитрий Львович Астановский Installation for burning fuel heating processing media
RU2601081C1 (en) * 2015-09-15 2016-10-27 Алексей Алексеевич Сердюков External boiler
WO2020133959A1 (en) * 2018-12-26 2020-07-02 浙江广涛卫厨有限公司 Heat exchange pipe
WO2020133958A1 (en) * 2018-12-26 2020-07-02 浙江广涛卫厨有限公司 New heat exchange tube

Also Published As

Publication number Publication date
EP2133634B1 (en) 2015-04-01

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