EP1431660B1 - Dispositif d'arrêt pour une conduite de fumée d'une cheminée - Google Patents

Dispositif d'arrêt pour une conduite de fumée d'une cheminée Download PDF

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Publication number
EP1431660B1
EP1431660B1 EP03028653A EP03028653A EP1431660B1 EP 1431660 B1 EP1431660 B1 EP 1431660B1 EP 03028653 A EP03028653 A EP 03028653A EP 03028653 A EP03028653 A EP 03028653A EP 1431660 B1 EP1431660 B1 EP 1431660B1
Authority
EP
European Patent Office
Prior art keywords
shut
temperature
flue gas
exhaust
auxiliary actuating
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.)
Expired - Lifetime
Application number
EP03028653A
Other languages
German (de)
English (en)
Other versions
EP1431660A1 (fr
Inventor
Manfred Pabst
Hans-Peter Thomann
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.)
Kutzner and Weber GmbH
Original Assignee
Kutzner and Weber GmbH
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 Kutzner and Weber GmbH filed Critical Kutzner and Weber GmbH
Publication of EP1431660A1 publication Critical patent/EP1431660A1/fr
Application granted granted Critical
Publication of EP1431660B1 publication Critical patent/EP1431660B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F23L11/00—Arrangements of valves or dampers after the fire
    • F23L11/005—Arrangements of valves or dampers after the fire for closing the flue during interruption of burner function
    • 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
    • F23L13/00—Construction of valves or dampers for controlling air supply or draught
    • F23L13/02—Construction of valves or dampers for controlling air supply or draught pivoted about a single axis but having not other movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F23N3/04—Regulating air supply or draught by operation of single valves or dampers by temperature sensitive elements
    • F23N3/047—Regulating air supply or draught by operation of single valves or dampers by temperature sensitive elements using mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/02—Air or combustion gas valves or dampers
    • F23N2235/04—Air or combustion gas valves or dampers in stacks

Definitions

  • the invention relates to a shut-off device for an exhaust path in an exhaust system of a fireplace, wherein the exhaust system has a normally active in Brenn Beausphasen the fireplace Gebläse adopted for generating an overpressure in the exhaust path and the shut-off comprises a shut-off, between a the exhaust path blocking the closed position and the exhaust path at least partially releasing open position stored adjustable - and is adjustable by acting on the pressure from the closed position towards the open position against a closing force.
  • Such a shut-off device is off DE 29 36 296 A1 known.
  • exhaust systems for overpressure operation can normally be dimensioned with smaller exhaust pipe cross sections or chimney pipe cross sections. This aspect is often taken up in chimney renovations.
  • a chimney of such an exhaust system for overpressure operation several fireplaces, such as gas fireplaces, be connected, as for example in the DE 196 03 615 A1 is described.
  • the fireplaces are connected via respective flue connection pipes to a common flue.
  • Each of the exhaust gas connection lines is provided with a shut-off device which is positioned between the blower device associated with the respective fireplace and the chimney.
  • each of the shut-off devices has an exhaust shut-off flap that can be adjusted by means of an electric motor between its closed position and open position in the exhaust gas path between the fireplace and the fireplace.
  • the exhaust valve is brought into the closed position, in which it seals off the exhaust path to the atmosphere. This ensures, on the one hand, that no room air withdrawal from the installation room of the relevant fireplace and thus no resulting accelerated room cooling takes place via the exhaust path.
  • prevents the exhaust valve in its closed position an exhaust gas flow from the fireplace in the direction of the fireplace.
  • a bimetallic shut-off valve for an exhaust pipe of a fireplace is disclosed. Bimetallic elements are exposed to the temperature of the exhaust gas stream and act as temperature-dependent control elements' for flap elements of the butterfly valve, so that the butterfly valve presents an increasing opening cross-section with increasing temperature of the exhaust gas flow.
  • the bimetal-controlled butterfly valve after the DE 37 15 855 C2 is designed for an atmospheric chimney system with natural chimney draft. It does not completely seal off the exhaust path in question in its closed position.
  • shut-off device with a flap actuator of a material with memory effect, as in the DE 31 41 216 C2 is explained.
  • the adjusting element consisting of a titanium-nickel alloy exhibits, at a phase change temperature, a change in shape that takes place virtually instantaneously, which may be reversible with a certain hysteresis when the temperature drops again. This effect is exploited to switch a respective exhaust flap back and forth between closed position and open position.
  • shut-off devices which loaded by a restoring force to the closed position and include in the closed position the exhaust path sealing locking elements.
  • the so-called gravity exhaust flap called which is loaded by gravity to the closed position.
  • the exhaust flap is subjected to the firing site side by the overpressure, so that it passes under overcoming gravity in the open position.
  • the invention has for its object to provide a shut-off device of the type mentioned above with a shut-off for an exhaust system for overpressure, which is convertible by applying pressure with pressure from the closed position to the open position, but the energy consumption of the blower for the overpressure generation is largely minimized.
  • the invention proposes that the shut-off device has a reversibly temperature-dependent auxiliary control device for the shut-off, wherein the auxiliary control device has at least one temperature-sensitive auxiliary actuator in the exhaust path or close to the exhaust path, which is adapted to increase its temperature in a certain temperature range to exert a force on the shut-off element that is continuously or suddenly increasing in the closing force.
  • the shut-off element When the fireplace is switched off and the blower device is switched off, the shut-off element is in the closed state, so that it seals off the exhaust gas path to the atmosphere. If the blower device is then switched on, it generates an overpressure in the exhaust gas path, which causes the blower Absperrelement applied firing site side and finally transferred in overcoming the closing force in an open position. In the exhaust path then there is a gas flow from the fireplace in the outward direction, so that after activation of the fireplace pending exhaust gases can be dissipated through the exhaust path to the outside to the atmosphere.
  • the shut-off device according to the invention works much like a conventional exhaust flap device with restoring force, such as a gravity exhaust flap.
  • the support force thus applied by the auxiliary control element is slightly smaller than the restoring closing force of the shut-off element, so that when eliminating the excess pressure in the exhaust path, the resultant of closing force and supporting force the shut-off transferred to the closed position, regardless of whether the auxiliary control element still at elevated temperature or is already at a lower temperature again. Exhaust backflow in the exhaust path can be reliably prevented. This aspect has particular importance in exhaust systems in which the fireplace is occupied by several fireplaces.
  • the present invention makes use of the principle that the temperature-dependent loading of the shut-off element by the auxiliary temperature-sensitive actuating element in the opening direction of the shut-off element can be "overdriven” by the overpressurization.
  • This will be according to the preferred embodiment the invention achieved in that the temperature-sensitive auxiliary control element is only loosely coupled to the shut-off, so that the shut-off can go into the open position even at lower temperature, if an overpressure builds up in the exhaust path Cyprus Toon noir the shut-off.
  • the auxiliary adjusting device comprises at least one bimetallic element as a temperature-sensitive auxiliary control element.
  • the temperature-sensitive auxiliary control element is at least partially formed from a material having a memory effect or shape memory effect.
  • the shut-off element is a pivotally mounted butterfly valve in the exhaust path.
  • a butterfly valve can be single-leaf or have a plurality of flap elements.
  • auxiliary control element by means of a heating wire or the like. Is heated to convert it into the corresponding with an open position of the shut-off setting state.
  • FIGS. 1a - 1c show schematically an embodiment of a shut-off device according to the invention in different operating conditions, wherein the shut-off device in a fragmentary and longitudinal section shown exhaust pipe of an exhaust system for overpressure operation is arranged.
  • the shut-off device has an exhaust flap 3, which in Fig. 1a in its exhaust passage 9 in the exhaust pipe 5 tightly blocking closed position is shown.
  • this is a gravity valve, which falls under the action of gravity in the closed position, as soon as counter forces fail.
  • the exhaust pipe 5 is connected on the one hand to a (not shown) Gasfeuer Too - and on the other hand to a (not shown) chimney pipe.
  • the side of the fireplace connection is in the Figures 1a - 1c below, and the side of the chimney pipe connection lies in the Figures 1a - 1c above.
  • a bimetallic element 7 is provided as a temperature-sensitive auxiliary control element in the exhaust path 9.
  • One end 11 of the loop-shaped bent bimetallic element 7 is fixedly fixed to the exhaust pipe 5, whereas the other end 13 of the bimetallic element 7 in Fig. 1a free at the bottom of the exhaust valve 3 is located.
  • the situation according to Fig. 1a is for example in a break in operation of the fireplace and the firing place side provided (not shown) fan for overpressure generation before.
  • the supporting force of the auxiliary control element 7 at a corresponding temperature is large enough to hold the shut-off element 3 without fan assist in the open position.
  • the shut-off device should be dimensioned so that the supporting force of the auxiliary control element 7 is not sufficient in the heated state alone to keep the shut-off element 3 in the open position when the excess pressure in the exhaust path 9. It can then not be the case that after switching off the fireplace and the fan and any occurrence of a pressure gradient from the chimney in the direction of the fireplace in question Abgas Wegströmung takes place through the shut-off, because the still heated auxiliary control element 7, the shut-off 3 only delayed in the Closed state.
  • the auxiliary actuator 7 is a bimetallic element.
  • the element 7 could also be an auxiliary control element made of a material having a memory effect, which corresponds to a molding state at temperatures below a transition temperature Fig. 1a and which at temperatures above the transition temperature a Shape state accordingly Fig. 1c occupies.
  • Memory alloys are known. eg NiTi, Cu-Zn-Al, Cu-Al-Ni.
  • the heating of the auxiliary control element 7 takes place only by heat transfer from the exhaust gas to the auxiliary control element 7.
  • the auxiliary control element 7 may be externally heated and this have approximately an electrical resistance heating wire.
  • overpressure operation in the context of the present application is generally also intended to cover the situation that the firing site side of the shut-off device in question has a higher pressure than the chimney side of the shut-off device. This can e.g. also be achieved in that the fireplace side of the shut-off device provides a suctioning fan device for a corresponding pressure difference.
  • the shut-off element can be kept in the open position over relevant periods as required according to a variant of the invention, even if the pressure is already largely reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lift Valve (AREA)
  • Temperature-Responsive Valves (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Valve Device For Special Equipments (AREA)

Claims (5)

  1. Dispositif d'arrêt pour un conduit de fumée (9) dans une installation d'évacuation des fumées d'un foyer, ladite installation d'évacuation des fumées comportant une soufflante, active pendant les phases de combustion du foyer et destinée à générer une surpression dans le conduit de fumée (9), et ledit dispositif d'arrêt comportant un élément d'arrêt (3), qui est monté de manière mobile entre une position de fermeture, obturant le conduit de fumée (9), et une position d'ouverture, libérant au moins en partie le conduit de fumée (9), et qui, sous l'effet de la sollicitation par une surpression, peut être amené dans le sens opposé d'une force de fermeture hors de la position de fermeture vers la position d'ouverture,
    caractérisé par un dispositif auxiliaire de réglage, actif de manière réversible en fonction de la température, pour l'élément d'arrêt (3), ledit dispositif auxiliaire de réglage comportant au moins un élément de réglage auxiliaire (7) sensible à la température, disposé dans le conduit de fumée (9) ou à proximité du conduit de fumée (9), pour l'élément d'arrêt (3), et ledit élément de réglage auxiliaire (7) étant configuré pour exercer, en cas d'augmentation de sa température dans une plage de températures déterminée, une force sur l'élément d'arrêt (3), laquelle agit, en particulier en continu ou en discontinu, progressivement à l'encontre de la force de fermeture.
  2. Dispositif d'arrêt selon la revendication 1, caractérisé en ce que le dispositif auxiliaire de réglage comporte au moins un élément bimétallique pour former l'élément de réglage auxiliaire (7) sensible à la température.
  3. Dispositif d'arrêt selon la revendication 1 ou 2, caractérisé en ce que l'élément de réglage auxiliaire (7) sensible à la température est réalisé au moins partiellement dans un matériau à effet de mémoire.
  4. Dispositif d'arrêt selon l'une quelconque des revendications précédentes, caractérisé par des moyens de chauffage actionnables de manière commandée, en particulier des moyens de chauffage par résistance électrique, destinés à chauffer l'élément de réglage auxiliaire sensible à la température.
  5. Dispositif d'arrêt selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément d'arrêt (3) est un clapet d'arrêt monté pivotant.
EP03028653A 2002-12-17 2003-12-15 Dispositif d'arrêt pour une conduite de fumée d'une cheminée Expired - Lifetime EP1431660B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20219557U 2002-12-17
DE20219557U DE20219557U1 (de) 2002-12-17 2002-12-17 Absperrvorrichtung für einen Abgasweg in einer Abgasanlage einer Feuerstätte

Publications (2)

Publication Number Publication Date
EP1431660A1 EP1431660A1 (fr) 2004-06-23
EP1431660B1 true EP1431660B1 (fr) 2010-03-24

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Application Number Title Priority Date Filing Date
EP03028653A Expired - Lifetime EP1431660B1 (fr) 2002-12-17 2003-12-15 Dispositif d'arrêt pour une conduite de fumée d'une cheminée

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EP (1) EP1431660B1 (fr)
AT (1) ATE462109T1 (fr)
DE (2) DE20219557U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1983263A1 (fr) * 2007-04-18 2008-10-22 Jolly-Mec Caminetti S.p.a. Cuisinière avec commande à inversion de gaz de carburant

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1089910B (de) * 1955-08-01 1960-09-29 Reiberger & Co Thermostatisch gesteuerte Abgasklappe
AT314144B (de) * 1972-03-02 1974-03-25 Leo Absenger Einrichtung zum Verschließen und Freigeben eines Durchlasses einer Abgasleitung
DE2752422A1 (de) * 1977-11-24 1979-05-31 Seppelfricke Geb Gmbh Abgasregler fuer kamingebundene gas- raumheizgeraete
DE2936296C2 (de) * 1979-09-07 1982-12-30 Otto 8898 Schrobenhausen Eppinger Absperrvorrichtung für eine Abgas- oder Luftansaugleitung
US4337892A (en) * 1980-10-17 1982-07-06 Werner Diermayer Draft control arrangement for vent of combustion apparatus
DE3715855C2 (de) * 1987-05-12 1998-02-26 Werner Diermayer Bimetallgesteuerte Absperrklappe für eine Abgasleitung einer Feuerstätte, insbesondere einer Gasfeuerstätte
DE3813170A1 (de) * 1988-04-20 1989-11-02 Friedrich Rathgeber Kg Regelte Thermisch steuerbare absperreinrichtung in rohrleitungen fuer gasfoermige stroemungsmedien

Also Published As

Publication number Publication date
ATE462109T1 (de) 2010-04-15
DE50312547D1 (de) 2010-05-06
DE20219557U1 (de) 2004-04-29
EP1431660A1 (fr) 2004-06-23

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