EP2577167A2 - Foyer - Google Patents

Foyer

Info

Publication number
EP2577167A2
EP2577167A2 EP11718699.9A EP11718699A EP2577167A2 EP 2577167 A2 EP2577167 A2 EP 2577167A2 EP 11718699 A EP11718699 A EP 11718699A EP 2577167 A2 EP2577167 A2 EP 2577167A2
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
glass
ceramic
fireplace according
mixed crystals
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Withdrawn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
EP11718699.9A
Other languages
German (de)
English (en)
Inventor
Falk Gabel
Roland Leroux
Torsten Gabelmann
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.)
Schott AG
Original Assignee
Schott AG
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 Schott AG filed Critical Schott AG
Publication of EP2577167A2 publication Critical patent/EP2577167A2/fr
Withdrawn legal-status Critical Current

Links

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
    • F24B1/18—Stoves with open fires, e.g. fireplaces
    • F24B1/185—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion
    • F24B1/188—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means , e.g. using a particular heat exchange medium, e.g. oil, gas  
    • F24B1/1881—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means , e.g. using a particular heat exchange medium, e.g. oil, gas   the heat exchange medium being either water or air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • 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
    • F24B1/18—Stoves with open fires, e.g. fireplaces
    • F24B1/191—Component parts; Accessories
    • F24B1/195—Fireboxes; Frames; Hoods; Heat reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M2900/00—Special features of, or arrangements for combustion chambers
    • F23M2900/05004—Special materials for walls or lining

Definitions

  • the invention relates to a fireplace, in particular individual room fire, with a combustion chamber, which is bounded by a combustion chamber lining and is accessible through a door, wherein the combustion chamber lining at least partially made of a ceramic or glass ceramic material, and wherein on the side facing away from the combustion chamber behind the Brennraumverposed ceramic or glass ceramic at least partially a wall element is arranged.
  • fireproof building materials are used in the combustion chamber, which are assigned either to the group of the natural or the technical silicates.
  • aluminosilicates in which silicon is partly replaced by aluminum.
  • these include, for example, neo-, phyllo- and tectosilicates such as mica, silimanite, mullite and feldspars.
  • Technical importance as thermal insulation material has Vermiculite, a phyllosilicate, obtained, which is a naturally occurring, caused by weathering mineral (mica schist) with, for example, the following chemical formula (Mg, Ca, K, Fe) 3 (Si, AL, Fe ) 4O10 (OH) 2O4H2O.
  • the chemically bound water is expelled in a shock-like manner, whereby the vermiculite is inflated to 10 to 35 times its volume.
  • the distended vermiculite is usually available as granules, sometimes also as plates and, due to its low price, is frequently used as a lining for combustion chambers.
  • silicates which are used as combustion chamber linings or refractory materials, a low thermal shock resistance ( ⁇ 500 ° C), a high expansion coefficient (i.d.R.> 1 0 x 1 0-6K-1), a low chemical resistance and high porosity in common. This results in a total limited use as a combustion chamber lining.
  • cordierite ceramics (CTE approx. 3 ⁇ 10 -6 K -1, magnesium aluminum silicates) should be mentioned here, which are formed directly during the sintering of soapstone or talcum with additions of clay, kaolin, chamotte, corundum and mullite.
  • the simplified approximation of the composition of pure ceramic cordierite is approximately 14% MgO, 35% Al2O3 and 51% SiO2.
  • Ceramic products are made by firing, where clays are processed with additives such as quartz sand or flour. Fireproof products are used in the combustion chamber of a fireplace.
  • fireclay bricks It is obtained by firing a mixture of raw, plastic clay and high-fired, coarse-grained refractory clay at high temperature.
  • a high-quality fireclay brick (higher application temperature) is characterized by the highest possible proportion of Al 2 O 3 in order to form as much mullite 3 Al 2 O 3 * 2 SiO 2 as possible.
  • these materials share significant porosity due to their production by the sintering process. This leads to a low mechanical and chemical resistance just in connection with the corrosive gases in the combustion chamber of fireplaces.
  • Glasses especially glass-ceramics combine all the essential properties to be suitable as materials for combustion chamber linings.
  • the low coefficient of thermal expansion ⁇ 1 .5 x 10-6K-1
  • the absence of porosity ⁇ 1 .5 x 10-6K-1
  • the high temperature change up to 800 ° C
  • chemical and mechanical resistance they are characterized for this application.
  • Glasses and glass ceramics are added to the technical silicates.
  • special glasses with very specific, suitable for special purposes own shafts may be interesting for applications in the fireplace. Mention here glass ceramics, as they are e.g. already used as a lens.
  • Such a fireplace is known from DE 198 01 079.
  • a construction is used in which a glass ceramic molding is applied to firebricks.
  • the firebricks are assigned to the combustion chamber so that the glass ceramic moldings delimit the combustion chamber.
  • the glass-ceramic molded parts are provided with an IR-radiation-reflecting coating.
  • From the prior art further chimneys are known whose combustion chamber are limited by heat-storing or heat-insulating materials. In particular, chamotte, vermiculite, calcium silicate plates or silimanites are currently used for this purpose. If the device / hearth has an additional device for heating / heating water or air, eg a heat exchanger, then this is predominantly positioned above the hearth in the combustion chamber.
  • DE 31 23 568 describes a fireplace with a gap in which is heated by circulating air flowing through a liquid heat exchanger. From DE 102 08 089 an additional module is known, which can be plugged onto a commercial stove to use the waste heat of the flue gases to heat water.
  • water heat exchangers are still known, which are formed by water-bearing walls.
  • the water-bearing walls are assigned to the combustion chamber.
  • the wall element is arranged so spaced from the associated combustion chamber lining of ceramic or glass ceramic, that a gap is formed.
  • the gap can be used, for example, for heat transfer by coupled via the ceramic or glass ceramic heat energy from the combustion chamber and introduced into the space.
  • the heat input into the gap can be controlled depending on the application.
  • the ceramic or glass ceramic forms on its side facing the combustion chamber an easily cleanable surface, from the annoying soot deposits can be easily removed with a broom or conventional glass cleaning agents. This ensures that a consistently high level of efficiency can be achieved.
  • an optical enlargement of the combustion chamber is achieved due to the mirror-like surface of the glass ceramic.
  • a heat exchanger is arranged in the intermediate space between the ceramic or glass ceramic and the wall element.
  • the heat exchanger can be designed, for example, as an air / water heat exchanger (or other media, eg oil).
  • an air / air heat exchanger is positioned in the intermediate space. IR radiation from the combustion chamber is decoupled via the ceramic or glass ceramic. This acts on the heat exchanger and heats the heat exchanger medium flowing in the heat exchanger.
  • the heat exchanger is housed behind the ceramic or glass ceramic corrosion protected. If the heat exchanger is designed as an air / water heat exchanger, then a convective portion can be used for heat exchanger heating. Accordingly, an air flow is generated in the space, the heated air passes the heat exchanger surfaces over.
  • a particularly preferred variant of the invention is such that the combustion chamber lining for the IR radiation is partially transparent or provided with a coating that absorbs IR radiation. In this way, it is ensured that some of the IR radiation from the combustion chamber passes through the ceramic or glass ceramic into the intermediate space. In addition, the ceramic or glass ceramic absorbs part of the IR radiation. As a result of the absorption of the IR radiation, the ceramic or glass ceramic heats up, whereby an additional energy input into the intermediate space and thus into a possibly arranged in the intermediate space heat exchanger arrangement is made possible.
  • a fireplace according to the invention may be such that an air duct is formed in the space. This air duct is in communication with the environment, so that an additional convective heating of the erection raum it, in the fireplace is housed, can be achieved. It is also conceivable that the air duct is connected to an external heat exchanger.
  • the heat exchanger is arranged in the air duct. In this way, the heat exchanger is heated both with IR radiation and convective and it is a space-saving design possible.
  • the intermediate space is at least partially filled with an insulating material in the form of a bulk material or in the form of a pliable mat.
  • the high-temperature-resistant ceramic or glass ceramic offers the advantage of easy cleanability of the furnace interior and the improved appearance.
  • materials for thermal insulation can be used that are currently not used in the furnace construction.
  • granules, sands or other bulk material, fiber mats or plates or e.g. To accommodate hollow spheres in the intermediate space. These can cause a significant weight reduction of the furnace, making it easier and more portable.
  • wall elements are designed in which the ceramic or glass ceramic, the filled insulation material and the wall element form a self-contained unit that can be handled and installed uniformly.
  • Fig. 1 in a schematic side view and in section a fireplace with an air / water heat exchanger
  • Fig. 2 in a schematic side view and in section a fireplace with a thermal insulation.
  • Fig. 1 shows a fireplace, as it is typically used in the living area / in residential interiors.
  • This fireplace has a combustion chamber 1 0, which is surrounded by a combustion chamber trim 13.
  • the front side of the combustion chamber 10 is accessible through a door 1 1 with a glass pane of glass ceramic or glass material.
  • a front panel 12 is provided, which may be formed by a firebrick or a cast iron material, in particular conventional design.
  • the combustion chamber lining 13 in the present case consists of five plates of ceramic or glass ceramic material. Accordingly, a cover-side plate 13.1, a rear wall 13.2, a bottom 13.3 and two vertical side walls 13.4 are provided.
  • the top-side plate 1 3.1 and the rear wall 1 3.2 are spaced parallel to wall elements 18 of the fireplace set up. In this way, a gap 14 is formed between the bottom 1 3.3 and the boundary wall, which is formed as an air duct 15.
  • This air duct 1 5 is in spatial communication with the vertical gap 14, as can be seen by the arrow.
  • Front side of the air duct 15 is connected via an inlet 15.1 in spatial communication with the room in which the fireplace is placed.
  • a gap 14 is also formed, which communicates with the installation space in front of an outlet 16 in spatial communication.
  • the spaces 14 and the air duct 15 form an air duct system, can be circulated by the ambient air.
  • a heat exchanger 20 is housed in the intermediate space 14.
  • the heat exchanger 20 is presently designed as an air / water heat exchanger. He points pipe lines, which are laid in the intermediate space 14. Water can be circulated through these pipelines, for example externally connected to a pump.
  • a fire 40 is generated in the combustion chamber 10 which emits IR radiation.
  • This IR radiation is decoupled by the partially transparent for IR radiation ceramic or glass ceramic plates of the combustion chamber lining 13 (top plate 13.1, rear wall 13.2 and side walls 13.4) and introduced into the associated spaces. There, the IR radiation impinges on / the heat exchanger 20 and heats it and thus the guided in the heat exchangers 20 heat transfer material.
  • the ceramic or glass ceramic plates of the combustion chamber lining 13 may in particular be provided with an IR radiation-absorbing coating so that the ceramic or glass ceramic is heated via the absorption process. In this way, the air duct 15 is facing a heated surface, can heat to the circulating air.
  • the heat exchanger 20 can be additionally heated by convection operations. Especially in the heating phase of the fireplace can thus be a high energy input into the storage medium (water).
  • the heated air can be used in addition to the space heating by being discharged through the outlet 1 6 in the room.
  • Fig. 2 shows a further embodiment variant of a fireplace, which is constructed substantially identical to the fireplace in Fig. 1. Only the intermediate space 14 between the top plate 13.1, the rear wall 13.2 and the side walls 13.4 and the respectively associated wall elements 18 is designed differently. While in the embodiment of FIG. 1, a heat exchanger 20 is provided, the spaces 14 as shown in FIG. 2 are filled with an insulating material in the form of a bed, namely in particular in the form of granules. Instead of the bulk material, a pliable insulating mat can also be arranged behind the ceramic or glass ceramic plates of the combustion chamber lining 1 3 in the intermediate space 14. This pliable mat is firstly used by the burner room trim 13 and on the other supported by the wall element 18 and held.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Glass Compositions (AREA)
  • Surface Treatment Of Glass (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Cookers (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Furnace Details (AREA)

Abstract

L'invention concerne un foyer équipé d'une chambre de combustion délimitée par un revêtement de chambre de combustion et accessible par une porte ou un clapet, le revêtement de la chambre de combustion étant au moins partiellement en céramique ou en céramique de verre et un élément de paroi étant disposé au moins partiellement sur le côté opposé à la chambre de combustion derrière le revêtement de la chambre de combustion en céramique ou en céramique de verre. Pour atteindre une fonctionnalité améliorée et un meilleur rendement de puissance, l'élément de paroi est disposé selon l'invention à une distance telle du revêtement de la chambre de combustion associé qu'un espace intermédiaire se forme. Un échangeur de chaleur ou un isolant peut être positionné dans l'espace intermédiaire.
EP11718699.9A 2010-05-26 2011-04-29 Foyer Withdrawn EP2577167A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010017087A DE102010017087B4 (de) 2010-05-26 2010-05-26 Feuerstätte
PCT/EP2011/056873 WO2011147659A2 (fr) 2010-05-26 2011-04-29 Foyer

Publications (1)

Publication Number Publication Date
EP2577167A2 true EP2577167A2 (fr) 2013-04-10

Family

ID=44626264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11718699.9A Withdrawn EP2577167A2 (fr) 2010-05-26 2011-04-29 Foyer

Country Status (6)

Country Link
US (1) US9500373B2 (fr)
EP (1) EP2577167A2 (fr)
JP (1) JP6109734B2 (fr)
CN (1) CN102918327B (fr)
DE (1) DE102010017087B4 (fr)
WO (1) WO2011147659A2 (fr)

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US9630381B2 (en) 2015-05-12 2017-04-25 Whirlpool Corporation Insulation system for a cooking appliance incorporating a plurality of microsphere sheets
FR3053327A1 (fr) * 2016-06-30 2018-01-05 Imertech Agent de frittage pour composition particulaire refractaire seche
CN106287833B (zh) * 2016-09-24 2018-06-08 成都测迪森生物科技有限公司 一种多层式环保生物灶
TWI631301B (zh) * 2017-07-10 2018-08-01 愛烙達股份有限公司 Chimney-free fireplace safety structure
US11002449B2 (en) 2017-09-20 2021-05-11 Pro-lroda Industries, Inc. Smokeless safe combustion device
KR101991720B1 (ko) * 2017-11-27 2019-06-21 심종덕 세라믹 전기로 머플 도가니 및 이의 제조방법
US11639779B2 (en) 2018-03-07 2023-05-02 Schott Ag Light reflection modification for fireplaces and other products
CN108852046A (zh) * 2018-07-24 2018-11-23 广西国开科技有限公司 一种无人售卖螺蛳粉机加热盘
DE102019102559B4 (de) * 2019-02-01 2024-02-22 Schott Ag Kaminofen

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* Cited by examiner, † Cited by third party
Title
See also references of WO2011147659A2 *

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CN102918327A (zh) 2013-02-06
WO2011147659A2 (fr) 2011-12-01
JP6109734B2 (ja) 2017-04-05
US9500373B2 (en) 2016-11-22
DE102010017087B4 (de) 2013-08-22
WO2011147659A3 (fr) 2012-08-23
JP2013534607A (ja) 2013-09-05
US20130213386A1 (en) 2013-08-22
CN102918327B (zh) 2016-03-02
DE102010017087A1 (de) 2011-12-01

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