EP2165118B1 - Kaminaufsatz mit austauschbarem oder recyclebarem katalytischem einsatz - Google Patents

Kaminaufsatz mit austauschbarem oder recyclebarem katalytischem einsatz Download PDF

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Publication number
EP2165118B1
EP2165118B1 EP07852526.8A EP07852526A EP2165118B1 EP 2165118 B1 EP2165118 B1 EP 2165118B1 EP 07852526 A EP07852526 A EP 07852526A EP 2165118 B1 EP2165118 B1 EP 2165118B1
Authority
EP
European Patent Office
Prior art keywords
tubular housing
cap device
chimney cap
opening
filter insert
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.)
Not-in-force
Application number
EP07852526.8A
Other languages
English (en)
French (fr)
Other versions
EP2165118A1 (de
Inventor
Joseph D. Smith
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.)
Arnold John G Jr
Original Assignee
Arnold John G Jr
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 Arnold John G Jr filed Critical Arnold John G Jr
Publication of EP2165118A1 publication Critical patent/EP2165118A1/de
Application granted granted Critical
Publication of EP2165118B1 publication Critical patent/EP2165118B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters

Definitions

  • the present invention is directed to a cap for a flue opening of a building.
  • the present invention is directed to a cap for a flue opening having a replaceable filter in order to reduce emissions generated by a gas fired device, to extend the flue or chimney to enhance draw of exhaust, to protect from the elements, and to protect from entry of animals and debris.
  • the present invention provides a decorative external feature for a building.
  • gas fired devices are utilized in buildings which burn natural gas, propane, or other light hydrocarbon gases. These include gas fired fireplaces, gas fired hot water heaters, gas fired room heaters and other devices. In most instances, these devices require exhaust through a flue pipe and a flue opening through the roof of the building. While gas fired devices are fairly efficient, they emit a certain amount of carbon monoxide (CO) and unburned hydrocarbons.
  • CO carbon monoxide
  • Catalytic converters are known devices used to reduce the toxicity of various emissions. For example, catalytic converters have been used on automobiles for a number of decades. An example of a catalytic converter is seen in U.S. Patent No. 3,441,381 titled "Apparatus For Purifying Exhaust Gases of An Internal Combustion Engine". In one type of catalytic converter, carbon monoxide is converted to carbon dioxide and unburned hydrocarbons are converted to carbon dioxide and water.
  • the present invention is directed to a chimney cap device for a flue opening of a building, as defined in claim 1.
  • the device includes a tubular housing having an open lower end which fits over a flue pipe of the flue opening.
  • the tubular housing also includes an open upper end opposed to the lower end.
  • a plurality of louver openings are provided in a lower portion of the tubular housing near the open lower end.
  • the louver openings permit atmospheric air to enter the tubular housing and mix with exhaust gases from the flue pipe.
  • a removable top is attached to the open upper end of the tubular housing.
  • the removable top includes a plurality of exit openings so that exhaust gases which pass through and out of the flue pipe will proceed upward through the tubular housing, into the removable top, and thereafter, out of the exit openings.
  • a metal liner is located within and spaced from the tubular housing.
  • An opening or openings are provided through the liner adjacent the louver openings so that atmospheric air passing through the louver openings will not only pass into a space between the tubular housing and the liner, but will also pass into the tubular housing and be drawn upward toward the removable top.
  • the chimney cap device also includes a removable filter insert received in an optional carrier or holder having an open top and an open bottom.
  • the carrier and filter insert are supported within the inner sleeve by a plurality of supports.
  • the filter insert promotes a chemical reaction wherein carbon monoxide from the exhaust gas is converted into carbon dioxide and wherein unburned hydrocarbons are converted into carbon dioxide and water. These gases and vapors are carried out the exhaust openings to the atmosphere.
  • Figure 1 is a sectional view of a chimney cap device 10 for a flue opening of the present invention while Figure 2 is an exploded view of the device 10 shown in Figure 1 .
  • the chimney cap device 10 includes a tubular housing 12 which may take a number of configurations.
  • the tubular housing has an open lower end 14 which fits over a flue pipe 20 of a flue opening of a building (not shown).
  • the flue pipe 20 receives exhaust from a gas fired device in a building. It will be appreciated that the present invention may be utilized with a wide variety of flue openings and flue pipe configurations.
  • the tubular housing 12 also includes an open upper end 16 opposed to the lower end 14.
  • the tubular housing 12 may be fabricated from flat sheet metal or other lightweight material.
  • the tubular housing 12 may be configured so that a cross-section of the housing is in the form of a square, an octagon, a hexagon, a rectangle, a circle, or other configuration.
  • louver openings 18 are provided in a lower portion of the tubular housing 12 near the open lower end 14.
  • the louver openings 18 are stamped or otherwise formed into the tubular housing 12.
  • the louver openings 18 permit atmospheric air to enter the tubular housing and mix with exhaust gases from the flue pipe.
  • the present invention extends the length of the flue to enhance draw of the exhaust.
  • a removable top 24 is attached to the open upper end 16 of the tubular housing 12.
  • the removable top 24 is shown apart from the device in the exploded view in Figure 2 .
  • the removable top 24 includes a plurality of exit openings 26.
  • the exit openings 26 may be stamped, punched, formed, or otherwise made into the sidewalls.
  • the total area of the exit openings is greater than the cross-sectional area of the flue pipe. Accordingly, exhaust gases which pass through and out of the flue pipe 20 will proceed upward through the tubular housing 12 into the removable top 24 and thereafter out of the exit openings 26.
  • atmospheric air is drawn into and through the louver openings 18 of the tubular housing, through the tubular housing 12, into the removable top 24, and out of the exit opening 26.
  • the cap device 10 also includes an inner frame and mounting assembly 22 attached near the open lower end 16 of the tubular housing 12.
  • the inner frame and mounting assembly 22 includes an anchoring and leveling mechanism to anchor the inner frame and mounting assembly to the building (not shown).
  • the anchoring and leveling mechanism may be used to anchor the inner frame and mounting assembly to a chimney or to a roof 40.
  • the removable top 24 includes a pyramidal upper section 30.
  • An optional heat deflector 32 beneath the pyramidal upper section 30 assists in creating turbulence in the exhaust gases and air. The turbulence assists in directing the exhaust gases and air out of the exit openings 26.
  • An optional rain guard 34 may be installed inside of the removable top 24 to discourage rain from passing through the exit openings 26 into the tubular housing.
  • a metal liner 50 is located within and spaced from the tubular housing 12.
  • An opening or openings are provided through the liner 50 adjacent the louver openings 18 so that atmospheric air passing through the louver openings 18 will not only pass into the space between the tubular housing 12 and the liner 50, but will also pass into the tubular housing 12 and be drawn upward toward the removable top.
  • the air drawn into the space between the tubular housing 12 and the liner 50 acts to insulate the tubular housing 12 from the heat of the exhaust.
  • the chimney cap device 10 also includes a removable filter insert 60.
  • the filter insert 60 is received into an optional carrier or holder 62 having an open top and bottom.
  • Figure 3 illustrates a front view of the chimney cap 10
  • Figure 4 illustrates a front view partially cut away for clarity.
  • a carrier 62 has an outwardly extending upper edge 52 which mates with the tubular housing and the liner 50 of the tubular housing.
  • the carrier 62 and the filter insert 60 are supported within the inner sleeve 50 by a plurality of supports 64 which may take the form of metal L brackets. Other types of supports may be utilized within the scope of the present invention.
  • the carrier 62 and its accompanying filter 60 may be removed.
  • Arrows 70 in Figure 5 illustrate the path of exhaust gases from the flue opening which pass into and through the filter insert 60.
  • the filter insert 60 promotes a chemical reaction wherein carbon monoxide from the exhaust gas is converted into carbon dioxide and wherein unburned hydrocarbons are converted to carbon dioxide and water which are carried out the exit openings. Carbon monoxide combines with oxygen to form carbon dioxide and unburned hydrocarbons combine with oxygen to form carbon dioxide and water.
  • One type of catalytic converter includes a core or substrate fabricated from a ceramic honeycomb.
  • the ceramic honeycomb has a series of thin walled rectangular channels which permit passage of gases therethrough. The openings are greater than the cross-section of the area of the flue pipe.
  • a washcoat is applied to the substrate core which may be a mixture of silicon and aluminum.
  • the washcoat forms a rough, irregular surface.
  • An oxidation catalyst is added to the washcoat in suspension before application to the core.
  • the catalyst may be chosen from a variety of metal ingredients such as platinum, rhodium and/or palladium. Other types of metals might also be employed.
  • the catalyst may be designed to operate at maximum efficiency between 60°C (140°F) and 149°C (300°F).
  • the exhaust gases from the gas fired appliance such as a gas fired fireplace
  • the exhaust gases mix with incoming atmospheric air entering through the louver openings 18 of the tubular housing.
  • the gas mixture contacts the catalyst on the filter insert 60 whereby the carbon monoxide and the unburned hydrocarbons are oxidized to carbon dioxide (CO 2 ) and water (H 2 O).
  • the purified gases are thereafter discharged into the removable top 24 and out of the exhaust openings.
  • the removable top 24 may be separated from the device 10 by removing fasteners 58 shown exploded in Figure 2 .
  • the filter insert 60 may be removed and cleaned, replaced or recycled.
  • an electrical heating element may be added to the filter insert to raise the operating temperature.
  • the present invention might also be modified to include a sensor in or adjacent the filter insert to sense if the filter becomes plugged. In that event, a visual and/or audible alarm wired to the sensor would be triggered.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Chimneys And Flues (AREA)

Claims (14)

  1. Kaminabdeckungsvorrichtung (10) für eine Schlotöffnung,
    wobei die Vorrichtung aufweist:
    ein rohrförmiges Gehäuse (12) mit einem offenen unteren Ende (14) und einem offenen oberen Ende (16);
    eine Mehrzahl von Lamellenöffnungen (18) in einem unteren Abschnitt des rohrförmigen Gehäuses (12), um Luft in das rohrförmige Gehäuse (12) zu saugen;
    ein entfernbares Oberteil (24), das an dem offenen oberen Ende (16) des rohrförmigen Gehäuses (12) angebracht ist, wobei das Oberteil (24) eine Mehrzahl von Austrittsöffnungen (26) enthält;
    eine Auskleidung (50), die in und an dem rohrförmigen Gehäuse (12) angebracht ist;
    wobei die Austrittsöffnungen (26) des Oberteils (24) eine Gesamtfläche haben, die größer ist als eine Querschnittsfläche der Schlotöffnung, und wobei zumindest eine Öffnung durch die Auskleidung (50) benachbart den Lamellenöffnungen (18) vorgesehen ist;
    wobei die zumindest eine Öffnung durch die Auskleidung (50) derart angeordnet ist, dass zumindest ein Teil der durch die Lamellenöffnungen hindurchtretenden Atmosphärenluft in das Gehäuse und aufwärts strömt;
    gekennzeichnet durch einen entfernbaren Filtereinsatz (60) innerhalb des rohrförmigen Gehäuses (12), wobei der Filtereinsatz (60) ein katalytischer Wandler ist; und
    eine Mehrzahl von Trägern (64), die sich von der Auskleidung (50) erstrecken, um den Filtereinsatz (60) zu halten, wobei der entfernbare Filtereinsatz (60) in dem rohrförmigen Gehäuse (12) über der Mehrzahl von Lamellenöffnungen (18) angeordnet ist und die zumindest eine Öffnung durch die Auskleidung (50) derart angeordnet ist, dass zumindest ein Teil der durch die Lamellenöffnungen (18) hindurchtretenden Atmosphärenluft in das rohrförmige Gehäuse (12) hinein und aufwärts durch den Filtereinsatz (60) strömt.
  2. Kaminabdeckungsvorrichtung (10) für eine Schlotöffnung nach Anspruch 1, die eine innere Rahmen- und Montageanordnung (22) enthält, die nahe einem offenen unteren Ende (14) des rohrförmigen Gehäuses (12) angebracht ist, wobei sie ein Verankerungs- und Nivelliermittel aufweist, um die innere Rahmen- und Montageanordnung (22) zu verankern.
  3. Die Kaminabdeckungsvorrichtung (10) für eine Schlotöffnung nach Anspruch 2, wobei die innere Rahmen- und Montageanordnung (22) Aufnahmen enthält, und wobei das Verankerungs- und Nivelliermittel eine Mehrzahl von Clips enthält, die in den Aufnahmen aufnehmbar sind.
  4. Kaminabdeckungsvorrichtung (10) für eine Schlotöffnung nach Anspruch 1, wobei das rohrförmige Gehäuse (12) aus flachem Metallblech hergestellt ist.
  5. Kaminabdeckungsvorrichtung (10) für eine Schlotöffnung nach Anspruch 4, wobei die Lamellenöffnungen (18) aus flachem Metallblech gestanzt sind.
  6. Die Kaminabdeckungsvorrichtung (10) für eine Schlotöffnung nach Anspruch 1, wobei das rohrförmige Gehäuse (12) einen Querschnitt in einer Form hat, die aus der Gruppe bestehend aus Achteck, Sechseck, Quadrat, Rechteck oder Kreis ausgewählt ist.
  7. Kaminabdeckungsvorrichtung (10) für eine Schlotöffnung nach Anspruch 1, wobei das abnehmbare Oberteil (24) an dem rohrförmigen Gehäuse (12) durch Befestigungselemente befestigt ist.
  8. Kaminabdeckungsvorrichtung (10) für eine Schlotöffnung nach Anspruch 1, wobei das Oberteil (24) einen Wärmeabweiser (32) enthält, um Gase zu den Austrittsöffnungen (26) hin zu lenken.
  9. Kaminabdeckungsvorrichtung (10) für eine Schlotöffnung nach Anspruch 1, wobei der katalytische Wandler einen Kern oder ein Substrat, eine Waschbeschichtung und einen Katalysator enthält.
  10. Kaminabdeckungsvorrichtung (10) für eine Schlotöffnung nach Anspruch 9, wobei der Kern oder das Substrat eine keramische Bienenwabenstruktur mit Gasströmungskanälen ist.
  11. Kaminabdeckungsvorrichtung (10) für eine Schlotöffnung nach Anspruch 9, wobei die Waschbeschichtung und der Katalysator auf den Kern oder das Substrat aufgetragen sind.
  12. Kaminabdeckungsvorrichtung (10) für eine Schlotöffnung nach Anspruch 9, wobei die Schlotöffnung ein hochstehendes Schlotrohr (20) enthält, und wobei das rohrförmige Gehäuse (12) das Schlotrohr (20) umgibt.
  13. Verfahren zum Behandeln von Kohlenmonoxid- und unverbrannten Kohlenwasserstoff-Emissionen, die an einem gasbefeuerten Gerät erzeugt werden, wobei das Verfahren aufweist: Leiten der Abgase von dem gasbefeuerten Gerät von einer Schlotöffnung in ein rohrförmiges Gehäuse (12) einer Kaminabdeckungsvorrichtung (10);
    Bereitstellen einer Auskleidung (50), die in und an dem rohrförmigen Gehäuse (12) angebracht ist;
    Zulassen, dass Atmosphärenluft durch Lamellenöffnungen (18) in einem unteren Abschnitt des rohrförmigen Gehäuses (12) in das rohrförmige Gehäuse (12) eintritt;
    Zulassen, dass die Abgase und die Atmosphärenluft in dem rohrförmigen Gehäuse (12) in und durch einen katalytischen Wandler-Filtereinsatz (60) hindurchtreten, der einen Kern oder ein Substrat, eine Waschbeschichtung und einen Katalysator aufweist, der in dem rohrförmigen Gehäuse (12) durch eine Mehrzahl von Trägern (64) getragen ist, die sich von der Auskleidung (50) erstrecken;
    Behandeln der Emissionen in den Abgasen mit dem Filtereinsatz (60);
    Zulassen, dass Gase, die durch den Filtereinsatz (60) hindurchtreten, in einem abnehmbaren Oberteil (24) aufgenommen werden;
    Zulassen, dass Gase von dem abnehmbaren Oberteil (24) durch eine Mehrzahl von Austrittsöffnungen (26) in dem abnehmbaren Oberteil (24) treten, wobei die Austrittsöffnungen (26) eine Gesamtfläche haben, die größer ist als eine Querschnittsfläche der Schlotöffnung, und zumindest eine Öffnung durch die Auskleidung (50) benachbart den Lamellenöffnungen (18), wobei der entfernbare Filtereinsatz (60) in dem rohrförmigen Gehäuse (12) über der Mehrzahl von Lamellenöffnungen (18) angeordnet ist, und die zumindest eine Öffnung durch die Auskleidung (50) derart angeordnet ist, dass ein Teil der durch die Lamellenöffnungen (18) hindurchtretenden Atmosphärenluft in das rohrförmige Gehäuse (12) hinein und aufwärts durch den Filtereinsatz (60) strömt.
  14. Verfahren zum Behandeln von Emissionen nach Anspruch 13, wobei der Schritt der Emissionsbehandlung enthält, Oxidation mit einem katalytischen Wandler zu begünstigen.
EP07852526.8A 2007-07-13 2007-10-04 Kaminaufsatz mit austauschbarem oder recyclebarem katalytischem einsatz Not-in-force EP2165118B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/777,365 US20090017741A1 (en) 2007-07-13 2007-07-13 Chimney cap with replaceable or recyclable ceramic catalytic filter insert
PCT/US2007/021320 WO2009011685A1 (en) 2007-07-13 2007-10-04 Chimney cap with replaceable or recyclable ceramic catalytic filter insert

Publications (2)

Publication Number Publication Date
EP2165118A1 EP2165118A1 (de) 2010-03-24
EP2165118B1 true EP2165118B1 (de) 2017-03-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07852526.8A Not-in-force EP2165118B1 (de) 2007-07-13 2007-10-04 Kaminaufsatz mit austauschbarem oder recyclebarem katalytischem einsatz

Country Status (5)

Country Link
US (1) US20090017741A1 (de)
EP (1) EP2165118B1 (de)
AU (1) AU2007356508A1 (de)
CA (1) CA2687466A1 (de)
WO (1) WO2009011685A1 (de)

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IT201600070345A1 (it) * 2016-07-06 2018-01-06 Anouk Immobiliare S R L “terminale per comignolo ad efficienza migliorata e costituente struttura di supporto per una struttura di comignolo prefabbricato”

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Also Published As

Publication number Publication date
AU2007356508A1 (en) 2009-01-22
CA2687466A1 (en) 2009-01-22
WO2009011685A1 (en) 2009-01-22
US20090017741A1 (en) 2009-01-15
EP2165118A1 (de) 2010-03-24

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