EP0375470A1 - Wärmerekuperator für Kaminöfen - Google Patents

Wärmerekuperator für Kaminöfen Download PDF

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Publication number
EP0375470A1
EP0375470A1 EP89400038A EP89400038A EP0375470A1 EP 0375470 A1 EP0375470 A1 EP 0375470A1 EP 89400038 A EP89400038 A EP 89400038A EP 89400038 A EP89400038 A EP 89400038A EP 0375470 A1 EP0375470 A1 EP 0375470A1
Authority
EP
European Patent Office
Prior art keywords
recovery device
heat recovery
hearth
fumes
hatch
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Withdrawn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
EP89400038A
Other languages
English (en)
French (fr)
Inventor
Clémentin Philippe
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.)
Les Cheminees Philippe SA
Original Assignee
Les Cheminees Philippe 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 Les Cheminees Philippe SA filed Critical Les Cheminees Philippe SA
Publication of EP0375470A1 publication Critical patent/EP0375470A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00—Stoves or ranges
    • F24B1/006—Stoves or ranges incorporating a catalytic combustor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B7/00—Stoves, ranges or flue-gas ducts, with additional provisions for convection heating 
    • F24B7/005—Flue-gas ducts

Definitions

  • the invention relates to a heat recovery device for closed hearth fireplaces with single or double heating regime. It will find its application in particular in the context of energy savings and pollution.
  • the hearth is made in double wall between which a heat transfer fluid is circulated which comes to heat in the double wall of the hearth, then the heat transfer fluid is directed to an area to be heated.
  • the heat transfer fluid is in the form of naturally or mechanically pulsed air in the room or rooms to be heated.
  • the weaker draft encountered in closed hearth paces also causes a rise in the temperature of the fumes. This is a factor which can cause an abnormal rise in the temperature of the flue.
  • the main object of the present invention is to present a heat recovery device for a closed hearth fireplace with a single or double heating regime which makes it possible to significantly improve the efficiency of the heating. Tests have shown that it is possible to obtain a significant improvement in yield.
  • the device of the invention can be incorporated very easily into an installation. It should be emphasized that the energy gain is essentially recorded during closed hearth operation, precisely in the regime where profitability of heating is sought.
  • the heat recovery device of the present invention also makes it possible to significantly reduce pollution by notably reducing the emissions of carbon monoxide. This characteristic is important because it makes it possible to totalize the combustion, hence a greater overall release of heat.
  • Another object of the present invention is to reduce the temperature of the fumes which is a safety factor.
  • the invention is of moderate cost, having regard to the advantages which it provides; otherwise, different variants are available to facilitate adaptation in all circumstances.
  • the heat recovery device for a closed hearth fireplace with a single or double heating regime intended to be placed in the smoke evacuation connection duct, is characterized in that it comprises: - a smoke evacuation bypass circuit for operation in open hearth heating mode and / or for starting combustion in closed hearth, - a heat exchanger which transfers part of the calories from the flue gases to a secondary heat transfer fluid circuit.
  • the present invention relates to a heat recovery device for a closed fireplace hearth with double or simple heating regime. It will find its application in particular in the field of energy savings and pollution.
  • the double heating regime for closed hearth fireplaces is obtained depending on whether the hearth is open or closed.
  • the open fireplace operation offers the spectacle of the flame and creates a warm and friendly atmosphere.
  • combustion cannot be controlled since the air intake is free.
  • This heating regime requires a good draft and the calorific output is poor because a good part of the calories is eliminated with the fumes.
  • the air intake control determines the heating rate. In this operating mode, the user searches for an optimum heating efficiency.
  • the present invention relates to closed hearths.
  • the closed hearth (1) has the advantage of being functional and economical as well as aesthetic. Its installation is easy and it generally allows a double stage of heating thanks to the presence of a retractable front door (2) which allows to operate with open or closed hearth.
  • the hearth (3) comprises at its upper part a drain (4) which communicates with a duct (5) for evacuating the fumes.
  • the hearth (1) can possibly be equipped with an exchanger to recover the calories around the hearth (3), thanks to a double-walled device as is traditionally encountered.
  • the device (6) for recovering heat of the invention is intended to be placed between the drain (4) and the duct (5) for evacuating the fumes.
  • the device of the invention may possibly cooperate with the exchanger present around the hearth (3).
  • the heat recovery device of the invention also makes it possible to significantly reduce the rate of unburnt gases and pollution.
  • the carbon monoxide content is very markedly weakened.
  • the presence of the device (6) of the invention upstream of the smoke evacuation duct (5) makes it possible to reduce the temperature of the exhaust gases, hence improved safety.
  • the heat recovery device (6) is illustrated in a preferred embodiment in FIG. 2.
  • the device (6) may comprise a catalyst (7) traversed by the fumes shown diagrammatically by the arrow (8) whose combustion it perfects .
  • the catalyst is generally in the form of a cartridge not shown which has a support structure in a honeycomb network made of a temperature-resistant material such as a ceramic, on which the catalytic material consisting of metals is deposited.
  • noble such as platinum, paladium, rhodium or other with an intermediate bonding layer. This very efficient structure causes only a small pressure drop and makes it possible to lower the content of hydrocarbon and carbon monoxide.
  • the position of the catalyst (7) must be determined so that its temperature is raised between 260 and 320 ° C to initiate the chemical reaction.
  • the oxygen supply necessary for combustion can be provided either by an independent conduit, or as is the case in FIG. 2 thanks to the presence of oxygen in the combustion gases (8).
  • the device (6) also comprises a heat exchanger (9) placed downstream of the catalyst (7) which transfers part of the calories from the flue gases (8) to a secondary circuit of heat transfer fluid.
  • this heat transfer fluid consists of pulsed air or not which passes through a series of pipes or baffles (10) around which the fumes (8) are circulated.
  • the device (6) comprises a by-pass smoke evacuation circuit (8) specially adapted for operation in open hearth heating mode, and / or for starting combustion in a closed hearth.
  • a by-pass smoke evacuation circuit (8) specially adapted for operation in open hearth heating mode, and / or for starting combustion in a closed hearth.
  • the presence of the catalyst and the exchanger is not favorable for the chimney draft.
  • the catalyst and the exchanger according to the invention are inserted, in open hearth the fumes are eliminated directly towards the duct (5).
  • the bypass is in the form of a hatch (13) with external control (14).
  • it is a key (14) which ensures during a rotation maneuver the tilting of the hatch (13) to communicate the inlet (11) and the outlet (12) of the device (6) .
  • the section of the hatch (13) is substantially equivalent to that of the fireplace outlet.
  • the hatch (13) is in the form of a plate secured to a rotation axis (15) which passes through the device (6) and at the end of which is the key operation (14).
  • the device (6) as illustrated in FIG. 2 is in the form of a parallelepipedal box (16) crossed by a by-pass duct (17) which comprises a hatch (13 ) upstream of which is placed a channel (18) leading to a catalyst (7) if this is the case, followed by two lateral corridors (9) which communicate with the chimney flue (5) downstream of said hatch (13) and which includes pipes (10) for exchangers or baffles.
  • the catalyst (7) communicates with the lateral passages of the exchangers (9) via orifices (19).
  • the exchangers (9) communicate with the smoke evacuation pipe (5) via orifices (20).
  • Figure 4 shows another embodiment in which the shape of the device (6) is elongated vertically.
  • the device (6) is formed by a cylindrical outer casing (21) placed at the end of the drain (4) and which surrounds the smoke evacuation duct (5).
  • a concentric internal wall (22) which determines two corridors (23) and (24) placed on each side thereof.
  • the corridors (23) and (24) are traversed at against direction by the fumes (8) shown diagrammatically by the arrows in FIG. 4.
  • Tubing (10) are placed in the corridors (23) and (24) to recover the heat energy of the fumes.
  • These tubes (10) can for example be in the form of coils.
  • the catalyst (7) is in the form of an annular cartridge placed at the entrance to the corridor (24).
  • a valve (13) allows the device (6) to be bypassed directly by communicating the drain (4) with the discharge duct (5).
  • the valve (13) is closed, on the contrary the flue gases (8) must, to escape, pass through the catalyst (7) and travel through the passages (23) and (24) to open into the exhaust duct (5 ).
  • any means for example a linkage (25), to prevent the opening of the door (2) when the exchanger is in service, that is to say when the hatch (13) of the bypass (17) is closed.
  • Means (25) are provided for preventing the opening of the front door (2).
  • the means (25) will preferably be controlled by the operating member (14) of the hatch (13).
  • the linkage (25) descends, the end of the rod (25) is then in front of the door (2) and prevents its opening. This avoids the backflow of smoke into the room when the exchanger is in service if one comes to open the door for example during loading.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chimneys And Flues (AREA)
EP89400038A 1988-12-20 1989-01-06 Wärmerekuperator für Kaminöfen Withdrawn EP0375470A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8817150 1988-12-20
FR8817150A FR2643443B1 (fr) 1988-12-20 1988-12-20 Dispositif de recuperation de chaleur pour cheminee a atre

Publications (1)

Publication Number Publication Date
EP0375470A1 true EP0375470A1 (de) 1990-06-27

Family

ID=9373396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89400038A Withdrawn EP0375470A1 (de) 1988-12-20 1989-01-06 Wärmerekuperator für Kaminöfen

Country Status (2)

Country Link
EP (1) EP0375470A1 (de)
FR (1) FR2643443B1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5816237A (en) * 1993-02-23 1998-10-06 Superior Fireplace Company Low emission fireplace
US6145502A (en) * 1999-03-02 2000-11-14 Heat-N-Glo Fireplace Products, Inc. Dual mode of operation fireplaces for operation in vented or unvented mode
ITUD20100183A1 (it) * 2010-10-08 2012-04-09 Palazzetti Lelio Spa Focolare per una apparecchiatura per la combustione di biomassa
EP2439446A1 (de) * 2010-10-08 2012-04-11 Palazzetti Lelio Spa Feuerstelle
ITUD20100222A1 (it) * 2010-12-01 2012-06-02 Palazzetti Lelio Spa Focolare
EP2486330A1 (de) 2009-09-25 2012-08-15 Officine Termotecniche Fraccaro S.r.l. Hocheffiziente vorrichtung zur umgebungserwärmung und erwärmungssystem mit einer derartigen vorrichtung
ITUD20110145A1 (it) * 2011-09-21 2013-03-22 Palazzetti Lelio Spa Focolare
WO2014083504A3 (en) * 2012-11-30 2014-07-24 Universidad De Santiago De Chile Post combustor
CN106642182A (zh) * 2016-12-15 2017-05-10 郑州轻工业学院 一种用于高温烟气余热的活动式换热器
CN111412757A (zh) * 2020-04-26 2020-07-14 秦皇岛中秦渤海轮毂有限公司 一种具有火星捕捉功能的烟气余热回收装置及方法
CN117232002A (zh) * 2023-10-08 2023-12-15 宁波宝工电器有限公司 一种热量收集装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH90635A (de) * 1920-11-25 1921-09-16 Rob Kundert Ofenaufsatz.
GB2081886A (en) * 1980-07-28 1982-02-24 Corning Glass Works Wood burning stove
US4319556A (en) * 1981-03-09 1982-03-16 Jamestown Group Catalytic stove
GB2085153A (en) * 1980-10-09 1982-04-21 Franklin Ind Inc Stove with catalytic converter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH90635A (de) * 1920-11-25 1921-09-16 Rob Kundert Ofenaufsatz.
GB2081886A (en) * 1980-07-28 1982-02-24 Corning Glass Works Wood burning stove
GB2085153A (en) * 1980-10-09 1982-04-21 Franklin Ind Inc Stove with catalytic converter
US4319556A (en) * 1981-03-09 1982-03-16 Jamestown Group Catalytic stove

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5816237A (en) * 1993-02-23 1998-10-06 Superior Fireplace Company Low emission fireplace
US6145502A (en) * 1999-03-02 2000-11-14 Heat-N-Glo Fireplace Products, Inc. Dual mode of operation fireplaces for operation in vented or unvented mode
EP2486330A1 (de) 2009-09-25 2012-08-15 Officine Termotecniche Fraccaro S.r.l. Hocheffiziente vorrichtung zur umgebungserwärmung und erwärmungssystem mit einer derartigen vorrichtung
EP2486330B1 (de) 2009-09-25 2017-04-19 Officine Termotecniche Fraccaro S.r.l. Hochwirksame vorrichtung für raumerwärmung und system mit einer solchen vorrichtung
ITUD20100183A1 (it) * 2010-10-08 2012-04-09 Palazzetti Lelio Spa Focolare per una apparecchiatura per la combustione di biomassa
EP2439446A1 (de) * 2010-10-08 2012-04-11 Palazzetti Lelio Spa Feuerstelle
ITUD20100222A1 (it) * 2010-12-01 2012-06-02 Palazzetti Lelio Spa Focolare
ITUD20110145A1 (it) * 2011-09-21 2013-03-22 Palazzetti Lelio Spa Focolare
WO2014083504A3 (en) * 2012-11-30 2014-07-24 Universidad De Santiago De Chile Post combustor
CN106642182A (zh) * 2016-12-15 2017-05-10 郑州轻工业学院 一种用于高温烟气余热的活动式换热器
CN111412757A (zh) * 2020-04-26 2020-07-14 秦皇岛中秦渤海轮毂有限公司 一种具有火星捕捉功能的烟气余热回收装置及方法
CN117232002A (zh) * 2023-10-08 2023-12-15 宁波宝工电器有限公司 一种热量收集装置

Also Published As

Publication number Publication date
FR2643443A1 (fr) 1990-08-24
FR2643443B1 (fr) 1993-07-16

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