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EP1728025B1 - Gas regulating fitting - Google Patents

Gas regulating fitting Download PDF

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Publication number
EP1728025B1
EP1728025B1 EP05715904.8A EP05715904A EP1728025B1 EP 1728025 B1 EP1728025 B1 EP 1728025B1 EP 05715904 A EP05715904 A EP 05715904A EP 1728025 B1 EP1728025 B1 EP 1728025B1
Authority
EP
European Patent Office
Prior art keywords
gas
main burner
sensor
valve
burner
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
EP05715904.8A
Other languages
German (de)
French (fr)
Other versions
EP1728025A1 (en
Inventor
Jürgen Blank
Barbara Happe
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.)
Maxitrol GmbH and Co KG
Original Assignee
Mertik Maxitrol GmbH and Co KG
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 Mertik Maxitrol GmbH and Co KG filed Critical Mertik Maxitrol GmbH and Co KG
Publication of EP1728025A1 publication Critical patent/EP1728025A1/en
Application granted granted Critical
Publication of EP1728025B1 publication Critical patent/EP1728025B1/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
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
    • F23N5/102—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/002—Regulating fuel supply using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F23N5/184—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
    • F23N5/203—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F23N2005/185—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using detectors sensitive to rate of flow of fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/22—Pilot burners
    • F23N2227/24—Pilot burners the pilot burner not burning continuously

Definitions

  • the invention relates to a gas control valve for a gas heating furnace or the like according to the preamble of the first claim.
  • Gas control valves for a gas heater or the like are available in a variety of designs. They are used for ignition and for the control or regulation of a gas flow flowing to a burner.
  • a gas control fitting described which is intended for the preferred installation in a gas-fired stove or the like. It enables the operation and monitoring of the burner.
  • the burner is divided into a pilot burner and a main burner.
  • the gas control valve has a start-up with ignition protection and reclosing lock and a control unit for the gas flowing to the main burner gas.
  • a manual ignition of the gas stream flowing to the pilot burner takes place via a piezoelectric ignition element associated with the start-up.
  • This gas control valve also has a commissioning with ignition protection and a control unit for the amount of gas flowing to the main burner.
  • a control unit for the amount of gas flowing to the main burner.
  • an electronic control unit for control and ignition is used in this gas control valve, however, an electronic control unit.
  • the ignition of the gas stream flowing to the pilot burner is possible via a piezoelectric ignition element.
  • thermoelectric Zündschsventil a main valve, which serve both for Zündtechnisch as well as for splitting the gas stream into shares for a main burner and a pilot burner, with a main valve downstream control unit for the gas flowing to the main burner gas stream and with other, secondary Functional elements known, wherein the gas control valve has a sensor through which the operating state of the main burner is detected.
  • the invention is based on the problem to provide a gas control valve, which also transfers the pilot burner in the "off” position after the startup of the gas stove at "off" position of the main burner to keep the energy consumption of the gas heater as low as possible. Furthermore, the gas control valve should have the simplest possible structure.
  • the problem is solved in that the gas control valve has a sensor, via which the operating state of the main burner can be detected.
  • the sensor is connected to the thermoelectric Zünd Anlagensventil that when changing the operating state of the main burner of the position "on” in the "off” position by a signal emitted by the sensor, the thermoelectric Zünd Anlagensventil assumes its closed position.
  • a delay element is arranged between the sensor and the thermoelectric ignition safety valve.
  • the sensor may for example consist of a flow sensor, which detects the operating state of the main burner in that it is checked whether a gas flow to the main burner flows.
  • the senor consists of a temperature sensor which detects the operating state of the main burner above the temperature present at the main burner.
  • Another possibility is to go with a sensor directly to the control unit for the gas flowing to the main burner gas quantity, so as to detect the operating state of the main burner.
  • the gas control valve according to the invention will be explained in more detail below using an exemplary embodiment.
  • the embodiment shows a schematic representation of an embodiment of a gas control valve in a sectional view in the open position.
  • the exemplary gas control valve according to the invention shown in the figure is a switching and control device, which is preferably intended for installation in a gas heating furnace or the like. It enables the operation and monitoring of a burner by controlling the amount of gas flowing to the burner.
  • the burner consists in this embodiment of a pilot burner 32 and a main burner 33rd
  • the gas control valve consists of a housing 1, which has a gas inlet 2, a Zündgasausgang 3 and a main gas outlet 4.
  • a gas inlet 2 a gas inlet 2
  • a Zündgasausgang 3 a gas outlet 3
  • main gas outlet 4 a main gas outlet 4.
  • the housing 1 In the housing 1 are the individual functional units.
  • an actuating rod 10 is longitudinally movably guided in a bearing 9 of the housing 1, which is actuated via an arranged on the housing 1 electromagnet 11 by means of the remote control 6, for example, by round rings 12, the necessary gas tightness is ensured.
  • the movement in the longitudinal direction is possible only against the force of a support in the housing 1 return spring 13.
  • the starting position to be adopted under the force of the return spring 13 is achieved by means of an abutment 14 located on the actuating rod 10, which abuts in the starting position on a stop, not shown.
  • the actuating rod 10 extends with its end into the interior of the housing. 1
  • the interior of the housing 1 is divided by a partition wall 15 into different rooms. Escaping in extension of the actuating rod 10, the partition wall 15 has a first opening 16, which forms a main valve 35 together with a valve disc 36 located on the actuating rod 10 on the one hand and on the other hand belongs to an ignition safety valve 17. Between the Zündtechnischsventil 17 and the main valve 35 is located within the opening 16th the Zündgasausgang 3.
  • the Zündtechnischsventil 17 is influenced by a gas-tight in a bearing of the housing 1 thermoelectric Zündtechnischsmagneten 18, which is located downstream of the gas inlet 2.
  • thermoelectric Zündschsmagnet 18 acts on an armature 19 which is rigidly connected to a valve rod 20 on which the valve plate 21 of the Zünd Anlagensventils 17 is attached. About the electronic control unit 5, as well as via a pilot flame exposed thermocouple 22 of the thermoelectric Zünd Anlagensmagnet 18 can be excited.
  • the control unit 8 In the flow direction behind the commissioning 7 is located within the housing 1 to the control unit 8 associated switch 24.
  • the switch 24 is designed in a known manner so that a modulating control of the valve 25 with sudden switching on and off in the partial load range via the valve 26th is effected.
  • the partial load flow is limited by the cross section of the opening 27 located in the partition wall.
  • a temperature sensor 34 in this example, an NTC - resistance temperature sensor is mounted, which is electrically connected to the electronic control unit 5, which in turn already has a connection for controlling the Zündtechnischsmagneten 18 of the thermoelectric Zündtechnischsventils 17.
  • a time delay element is interposed in the electronic control unit 5.
  • thermoelectric ignition lock valve 17 is closed.
  • the closing of the thermoelectric Zünd Anlagensventils 17 not immediately, but with a time delay to re-ignite the Zündbrenners 32 and at a short-term necessary reignition of the main burner 33, as may occur in particular at room temperature controls thus avoiding additional stress on the ignition device.
  • the gas control valve for example, even more functional units, such as a pressure regulator or the like, except those mentioned may have. Also, the query of the prevailing at the temperature sensor 34 temperature not running, but at certain intervals and / or only take place when an actuation of the drive unit 31 has taken place.
  • thermoelectric ignition safety valve 17 can take place, for example if an electronic control unit 5 is not present.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Regulation And Control Of Combustion (AREA)

Description

Technisches GebietTechnical area

Die Erfindung betrifft eine Gasregelarmatur für einen Gasheizofen oder dergleichen nach dem Oberbegriff des ersten Patentanspruches.The invention relates to a gas control valve for a gas heating furnace or the like according to the preamble of the first claim.

Stand der TechnikState of the art

Gasregelarmaturen für einen Gasheizofen oder dergleichen gibt es in einer Vielzahl von Ausführungen. Sie dienen zur Zündung und zur Steuerung bzw. Regelung eines einem Brenner zufließenden Gasstromes.Gas control valves for a gas heater or the like are available in a variety of designs. They are used for ignition and for the control or regulation of a gas flow flowing to a burner.

So ist in der DE 197 46 788 C1 eine Gasregelarmatur beschrieben, die für den vorzugsweisen Einbau in einen gasbeheizten Kaminofen oder dergleichen bestimmt ist. Sie ermöglicht die Bedienung und Überwachung des Brenners. Der Brenner ist unterteilt in einen Zündbrenner und einen Hauptbrenner. Dazu besitzt die Gasregelarmatur eine Inbetriebnahme mit Zündsicherung und Wiedereinschaltverriegelung und eine Steuerungseinheit für die zum Hauptbrenner strömende Gasmenge. Über ein zur Inbetriebnahme zugehöriges piezoelektrisches Zündelement erfolgt die manuelle Zündung des zum Zündbrenner strömenden Gasstromes.So is in the DE 197 46 788 C1 a gas control fitting described, which is intended for the preferred installation in a gas-fired stove or the like. It enables the operation and monitoring of the burner. The burner is divided into a pilot burner and a main burner. For this purpose, the gas control valve has a start-up with ignition protection and reclosing lock and a control unit for the gas flowing to the main burner gas. A manual ignition of the gas stream flowing to the pilot burner takes place via a piezoelectric ignition element associated with the start-up.

Aus der DE -Anmeldung Az. 103 05 929.6 ist eine ähnliche Gasregelarmatur bekannt. Diese Gasregelarmatur weist ebenfalls eine Inbetriebnahme mit Zündsicherung und eine Steuerungseinheit für die zum Hauptbrenner strömende Gasmenge auf. Zur Ansteuerung und zur Zündung dient bei dieser Gasregelarmatur jedoch eine elektronische Steuereinheit. Optional ist auch die Zündung des zum Zündbrenner strömenden Gasstromes über ein piezoelektrisches Zündelement möglich.From the DE-application Az. 103 05 929.6 a similar gas control valve is known. This gas control valve also has a commissioning with ignition protection and a control unit for the amount of gas flowing to the main burner. For control and ignition is used in this gas control valve, however, an electronic control unit. Optionally, the ignition of the gas stream flowing to the pilot burner is possible via a piezoelectric ignition element.

Bei beiden Ausführungen ist es von Nachteil, dass die Zündflamme nach erfolgter Inbetriebnahme des Gasheizofens bis zur Außerbetriebnahme desselben immer brennt.In both versions, it is disadvantageous that the pilot flame always burns after commissioning of the gas heating furnace to the decommissioning.

Aus der US-4915613 oder der EP-1188989 ist eine Gasregelarmatur mit einem thermoelektrischen Zündsicherungsventil, einem Hauptventil, die gemeinsam sowohl zur Zündsicherung als auch zur Aufspaltung des Gasstromes in Anteile für einen Hauptbrenner und für einen Zündbrenner dienen, mit einer dem Hauptventil nachgeordneten Steuerungseinheit für den zum Hauptbrenner fließenden Gasstrom und mit weiteren, sekundären Funktionselementen bekannt, wobei die Gasregelarmatur einen Sensor aufweist, über den der Betriebszustand des Hauptbrenners erfasst ist.From the US 4915613 or the EP-1188989 is a gas control valve with a thermoelectric Zündsicherungsventil, a main valve, which serve both for Zündsicherung as well as for splitting the gas stream into shares for a main burner and a pilot burner, with a main valve downstream control unit for the gas flowing to the main burner gas stream and with other, secondary Functional elements known, wherein the gas control valve has a sensor through which the operating state of the main burner is detected.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt das Problem zugrunde eine Gasregelarmatur zu schaffen, die nach erfolgter Inbetriebnahme des Gasheizofens bei "Aus"-Stellung des Hauptbrenners auch den Zündbrenner in die "Aus"-Stellung überführt, um den Energiebedarf des Gasheizofens möglichst niedrig zu halten. Weiterhin soll die Gasregelarmatur einen möglichst einfachen Aufbau aufweisen.The invention is based on the problem to provide a gas control valve, which also transfers the pilot burner in the "off" position after the startup of the gas stove at "off" position of the main burner to keep the energy consumption of the gas heater as low as possible. Furthermore, the gas control valve should have the simplest possible structure.

Erfindungsgemäß wird das Problem dadurch gelöst, dass die Gasregelarmatur einen Sensor aufweist, über den der Betriebszustand des Hauptbrenners erfassbar ist. Dabei ist der Sensor derart mit dem thermoelektrischen Zündsicherungsventil verbunden, dass beim Wechsel des Betriebszustandes des Hauptbrenners von der Stellung "Ein" in die "Aus"-Stellung durch ein vom Sensor ausgesandtes Signal das thermoelektrische Zündsicherungsventil seine Geschlossenstellung einnimmt. Desweiteren ist zwischen dem Sensor und dem thermoelektrischen Zündsicherungsventil ein Verzögerungsglied angeordnet. So können kurzfristige Ausschaltungen des Hauptbrenners ausgeblendet werden, um zu häufige Zündvorgänge und damit Belastungen der Zündeinrichtung zu vermeiden.According to the invention, the problem is solved in that the gas control valve has a sensor, via which the operating state of the main burner can be detected. In this case, the sensor is connected to the thermoelectric Zündsicherungsventil that when changing the operating state of the main burner of the position "on" in the "off" position by a signal emitted by the sensor, the thermoelectric Zündsicherungsventil assumes its closed position. Furthermore, a delay element is arranged between the sensor and the thermoelectric ignition safety valve. Thus, short-term shutdowns of the main burner can be hidden in order to avoid frequent ignition and thus loads the ignition.

Damit wurde eine Lösung gefunden, mit der die weiter oben genannten Nachteile des Standes der Technik beseitigt wurden. Dabei zeichnet sich die Lösung durch ihren einfachen Aufbau und ihre einfache Wirkungsweise aus.Thus, a solution was found with which the above-mentioned disadvantages of the prior art have been eliminated. The solution is characterized by its simple structure and simple operation.

Weitere vorteilhafte Ausgestaltungen der Erfindung gehen aus den anderen Patentansprüchen hervor.Further advantageous embodiments of the invention will become apparent from the other claims.

So können unterschiedliche Arten von Sensoren verwendet werden. Der Sensor kann beispielsweise aus einem Durchfluss-Sensor bestehen, der den Betriebszustand des Hauptbrenners dadurch erfasst, dass überprüft wird, ob zum Hauptbrenner ein Gasstrom fließt.So different types of sensors can be used. The sensor may for example consist of a flow sensor, which detects the operating state of the main burner in that it is checked whether a gas flow to the main burner flows.

Eine besonders einfache Lösung ergibt sich, wenn der Sensor aus einem Temperatur-Sensor besteht, der den Betriebszustand des Hauptbrenners über die am Hauptbrenner vorhandene Temperatur erfasst.A particularly simple solution results if the sensor consists of a temperature sensor which detects the operating state of the main burner above the temperature present at the main burner.

Eine weitere Möglichkeit ist es, mit einem Sensor direkt an die Steuerungseinheit für die zum Hauptbrenner strömende Gasmenge zu gehen, um so den Betriebszustand des Hauptbrenners zu erfassen.Another possibility is to go with a sensor directly to the control unit for the gas flowing to the main burner gas quantity, so as to detect the operating state of the main burner.

Ausführungsbeispielembodiment

Die erfindungsgemäße Gasregelarmatur wird nachstehend an einem Ausführungsbeispiel näher erläutert. Das Ausführungsbeispiel zeigt in schematischer Darstellung eine Ausführung einer Gasregelarmatur in geschnittener Darstellung in Offenstellung.The gas control valve according to the invention will be explained in more detail below using an exemplary embodiment. The embodiment shows a schematic representation of an embodiment of a gas control valve in a sectional view in the open position.

Die in der Figur dargestellte beispielhafte erfindungsgemäße Gasregelarmatur ist ein Schalt- und Regelgerät, das vorzugsweise für den Einbau in einen Gasheizofen oder dergleichen bestimmt ist. Sie ermöglicht die Bedienung und Überwachung eines Brenners, indem die zum Brenner strömende Gasmenge gesteuert wird. Der Brenner besteht in diesem Ausführungsbeispiel aus einem Zündbrenner 32 und einem Hauptbrenner 33.The exemplary gas control valve according to the invention shown in the figure is a switching and control device, which is preferably intended for installation in a gas heating furnace or the like. It enables the operation and monitoring of a burner by controlling the amount of gas flowing to the burner. The burner consists in this embodiment of a pilot burner 32 and a main burner 33rd

Die Gasregelarmatur besteht aus einem Gehäuse 1, das einen Gaseingang 2, einen Zündgasausgang 3 und einen Hauptgasausgang 4 aufweist. In dem Gehäuse 1 befinden sich die einzelnen Funktionseinheiten.The gas control valve consists of a housing 1, which has a gas inlet 2, a Zündgasausgang 3 and a main gas outlet 4. In the housing 1 are the individual functional units.

Zur Ansteuerung dient eine elektronische Steuereinheit 5, die sich in diesem Ausführungsbeispiel zusammen mit einer Spannungsquelle in einem separaten ortsunabhängigen Gehäuse einer Fernbedienung 6 befindet.To control an electronic control unit 5, which is located in this embodiment, together with a voltage source in a separate location-independent housing of a remote control 6 is used.

In der dargestellten Gasregelarmatur sind folgende Funktionseinheiten untergebracht:

  • Inbetriebnahme 7 mit Zündsicherung und Hauptventil 35
  • Steuerungseinheit 8 für die zum Hauptbrenner 33 strömende Gasmenge.
The following functional units are accommodated in the illustrated gas control fitting:
  • Commissioning 7 with ignition protection and main valve 35
  • Control unit 8 for the gas flowing to the main burner 33 gas.

Für die Inbetriebnahme 7 ist in einer Lagerstelle 9 des Gehäuses 1 eine Betätigungsstange 10 längsbeweglich geführt, die über einen auf dem Gehäuse 1 angeordneten Elektromagneten 11 mittels der Fernbedienung 6 betätigbar ist, wobei zum Beispiel durch Rundringe 12 die notwendige Gasdichtheit gewährleistet wird.For commissioning 7, an actuating rod 10 is longitudinally movably guided in a bearing 9 of the housing 1, which is actuated via an arranged on the housing 1 electromagnet 11 by means of the remote control 6, for example, by round rings 12, the necessary gas tightness is ensured.

Die Bewegung in Längsrichtung ist dabei nur gegen die Kraft einer sich im Gehäuse 1 abstützenden Rückholfeder 13 möglich. Die unter der Kraft der Rückholfeder 13 einzunehmende Ausgangsstellung wird durch ein an der Betätigungsstange 10 befindliches Gegenlager 14 erreicht, das in Ausgangsstellung an einem nicht dargestellten Anschlag anliegt. Die Betätigungsstange 10 reicht mit ihrem Ende ins Innere des Gehäuses 1.The movement in the longitudinal direction is possible only against the force of a support in the housing 1 return spring 13. The starting position to be adopted under the force of the return spring 13 is achieved by means of an abutment 14 located on the actuating rod 10, which abuts in the starting position on a stop, not shown. The actuating rod 10 extends with its end into the interior of the housing. 1

Das Innere des Gehäuses 1 wird durch eine Trennwand 15 in verschiedene Räume unterteilt. Fluchtend in Verlängerung der Betätigungsstange 10 weist die Trennwand 15 eine erste Öffnung 16 auf, die einerseits zusammen mit einem auf der Betätigungsstange 10 befindlichen Ventilteller 36 ein Hauptventil 35 bildet und die andererseits zu einem Zündsicherungsventil 17 gehört. Zwischen dem Zündsicherungsventil 17 und dem Hauptventil 35 befindet sich innerhalb der Öffnung 16 der Zündgasausgang 3. Das Zündsicherungsventil 17 wird durch einen in einer Lagerstelle des Gehäuses 1 gasdicht angeordneten thermoelektrischen Zündsicherungsmagneten 18 beeinflusst, der sich stromab des Gaseinganges 2 befindet. Der thermoelektrische Zündsicherungsmagnet 18 wirkt auf einen Anker 19, der starr mit einer Ventilstange 20 verbunden ist, auf der der Ventilteller 21 des Zündsicherungsventils 17 befestigt ist. Über die elektronische Steuereinheit 5, sowie über ein der Zündflamme ausgesetztes Thermoelement 22 ist der thermoelektrische Zündsicherungsmagnet 18 erregbar.The interior of the housing 1 is divided by a partition wall 15 into different rooms. Escaping in extension of the actuating rod 10, the partition wall 15 has a first opening 16, which forms a main valve 35 together with a valve disc 36 located on the actuating rod 10 on the one hand and on the other hand belongs to an ignition safety valve 17. Between the Zündsicherungsventil 17 and the main valve 35 is located within the opening 16th the Zündgasausgang 3. The Zündsicherungsventil 17 is influenced by a gas-tight in a bearing of the housing 1 thermoelectric Zündsicherungsmagneten 18, which is located downstream of the gas inlet 2. The thermoelectric Zündsicherungsmagnet 18 acts on an armature 19 which is rigidly connected to a valve rod 20 on which the valve plate 21 of the Zündsicherungsventils 17 is attached. About the electronic control unit 5, as well as via a pilot flame exposed thermocouple 22 of the thermoelectric Zündsicherungsmagnet 18 can be excited.

Der Aufbau und die Wirkungsweise des Zündsicherungsmagneten 18 sind im übrigen dem Fachmann geläufig, so dass auf die Beschreibung weiterer Einzelheiten verzichtet werden kann. Hervorzuheben ist nur noch, dass eine Rückstellfeder 23 bestrebt ist, den Anker 19 über den als Federlager dienenden Ventilteller 21 vom Zündsicherungsmagneten 18 abzuziehen.The structure and operation of the Zündsicherungsmagneten 18 are otherwise familiar to those skilled in the art, so that can be dispensed with the description of further details. It should be emphasized only that a return spring 23 strives to deduct the armature 19 via the serving as a spring bearing valve plate 21 from the Zündsicherungsmagneten 18.

In Strömungsrichtung hinter der Inbetriebnahme 7 befindet sich innerhalb des Gehäuses 1 ein zur Steuerungseinheit 8 zugehöriger Schalter 24. Der Schalter 24 ist in bekannter Weise so ausgeführt, dass eine modulierende Steuerung über das Ventil 25 mit sprungförmiger Ein- und Ausschaltung im Teillastbereich über das Ventil 26 bewirkt wird. Dabei wird der Teillastdurchfluss durch den Querschnitt der in der Trennwand befindlichen Öffnung 27 begrenzt.In the flow direction behind the commissioning 7 is located within the housing 1 to the control unit 8 associated switch 24. The switch 24 is designed in a known manner so that a modulating control of the valve 25 with sudden switching on and off in the partial load range via the valve 26th is effected. In this case, the partial load flow is limited by the cross section of the opening 27 located in the partition wall.

Der mit dem Schalter 24 in kraftschlüssiger Verbindung stehende und längsbewegliche Stößel 28 ragt aus dem gleichzeitig eine Lagerstelle 29 für ihn bildenden Gehäuse 1 heraus. Durch zum Beispiel einen Rundring 30 wird die notwendige Gasdichtheit nach Außen gewährleistet. Mit seinem dem Schalter 24 abgewandten Ende ist der Stößel 28 mit einer nicht näher erläuterten, da für den Fachmann bekannten Antriebseinheit 31 verbunden. Die Ansteuerung der Antriebseinheit 31 erfolgt mittels der Fernbedienung 6 über die elektronische Steuereinheit 5.The standing with the switch 24 in non-positive connection and longitudinally movable plunger 28 protrudes from the same time a bearing 29 for him forming housing 1 out. By, for example, a round ring 30, the necessary gas tightness is ensured to the outside. With its end facing away from the switch 24, the plunger 28 is connected to an unspecified, as known to those skilled drive unit 31. The control of the drive unit 31 by means of the remote control 6 via the electronic control unit. 5

In unmittelbarer Nähe der Flammen des Hauptbrenners 33 ist ein Temperatursensor 34, in diesem Beispiel ein NTC - Widerstandstemperatursensor, montiert, der elektrisch mit der elektronischen Steuereinheit 5 verbunden ist, die ihrerseits bereits über eine Verbindung zur Ansteuerung des Zündsicherungsmagneten 18 des thermoelektrischen Zündsicherungsventils 17 verfügt. Aus später näher erläutertem Grund ist in der elektronischen Steuereinheit 5 ein zeitliches Verzögerungsglied zwischengeschaltet.In the immediate vicinity of the flames of the main burner 33, a temperature sensor 34, in this example, an NTC - resistance temperature sensor is mounted, which is electrically connected to the electronic control unit 5, which in turn already has a connection for controlling the Zündsicherungsmagneten 18 of the thermoelectric Zündsicherungsventils 17. For reasons explained in more detail later, a time delay element is interposed in the electronic control unit 5.

Die Wirkungsweise der Gasregelarmatur ist wie folgt:

  • Nach Inbetriebnahme und damit erfolgter Zündung der Zündflamme mittels einer Zündelektrode 37 kann über die Fernbedienung 6 und die elektronische Steuereinheit 5 die Antriebseinheit 31 betätigt werden. Dadurch öffnet der Schalter 24 in bekannter Art und Weise, indem es zu einem schlagartigen Öffnen kommt. Die durch die Öffnung 27 begrenzte konstante Gasmenge strömt über den Hauptgasausgang 4 zum Hauptbrenner 33 und wird über die Zündflamme gezündet. Die Flammen brennen mit einer Minimalhöhe und der Temperatursensor 34 wird erwärmt. Bei einer weiteren Betätigung der Antriebseinheit 31 wird die zum Hauptbrenner 33 strömende Gasmenge gleichmäßig vergrößert. Der Schalter 24 befindet sich nunmehr im modulierenden Bereich und das Ventil 25 wird gleichmäßig geöffnet, bis die maximale Gasmenge erreicht ist.
The operation of the gas control valve is as follows:
  • After startup and thus successful ignition of the pilot flame by means of a firing electrode 37, the drive unit 31 can be operated via the remote control 6 and the electronic control unit 5. As a result, the switch 24 opens in a known manner, by causing a sudden opening. The limited by the opening 27 constant amount of gas flows through the main gas outlet 4 to the main burner 33 and is ignited via the pilot flame. The flames burn with a minimum height and the temperature sensor 34 is heated. Upon further actuation of the drive unit 31, the amount of gas flowing to the main burner 33 is increased uniformly. The switch 24 is now in the modulating area and the valve 25 is opened evenly until the maximum amount of gas is reached.

Wird nun auf Grund eines verringerten Energiebedarfs über die Antriebseinheit 31 der Schalter 24, d.h. zuerst das Ventil 25 und anschließend auch das Ventil 26 geschlossen, so kommt es zum Erlöschen der Flammen des Hauptbrenners 33 und damit zum Absinken der Temperatur am Temperatursensor 34. Diese Information wird in der elektronischen Steuereinheit 5 ausgewertet und daraufhin das thermoelektrische Zündsicherungsventil 17 geschlossen. Dabei erfolgt in diesem Ausführungsbeispiel, wie bereits weiter oben angedeutet, das Schließen des thermoelektrischen Zündsicherungsventils 17 nicht sofort, sondern mit einer Zeitverzögerung, um bei einem kurzfristig notwendigen Wiederzünden des Hauptbrenners 33, wie es insbesondere bei Raumtemperaturregelungen auftreten kann, ein Neuzünden des Zündbrenners 32 und damit eine zusätzliche Beanspruchung der Zündeinrichtung zu vermeiden.If, due to a reduced energy requirement, the switch 24, ie first the valve 25 and then also the valve 26, is closed via the drive unit 31, the flames of the main burner 33 are extinguished and thus the temperature at the temperature sensor 34 goes down. This information is evaluated in the electronic control unit 5 and then the thermoelectric ignition lock valve 17 is closed. In this embodiment, as already indicated above, the closing of the thermoelectric Zündsicherungsventils 17 not immediately, but with a time delay to re-ignite the Zündbrenners 32 and at a short-term necessary reignition of the main burner 33, as may occur in particular at room temperature controls thus avoiding additional stress on the ignition device.

Die erfindungsgemäße Gasregelarmatur ist selbstredend nicht auf das dargestellte Ausführungsbeispiel beschränkt. Vielmehr sind Änderungen, Abwandlungen und Kombinationen möglich, ohne den Rahmen der Erfindung zu verlassen.The gas control valve according to the invention is of course not limited to the illustrated embodiment. Rather, changes, modifications and combinations are possible without departing from the scope of the invention.

So versteht es sich, dass die Gasregelarmatur beispielsweise noch weitere Funktionseinheiten, wie beispielsweise einen Druckregler o.ä., außer den genannten aufweisen kann. Auch kann die Abfrage der am Temperatursensor 34 vorherrschenden Temperatur nicht laufend, sondern in bestimmten Zeitabständen oder/und nur erfolgen, wenn eine Betätigung der Antriebseinheit 31 erfolgt ist.So it is understood that the gas control valve, for example, even more functional units, such as a pressure regulator or the like, except those mentioned may have. Also, the query of the prevailing at the temperature sensor 34 temperature not running, but at certain intervals and / or only take place when an actuation of the drive unit 31 has taken place.

Weiterhin kann eine direkte Ansteuerung und Ausschaltung des thermoelektrischen Zündsicherungsventils 17 erfolgen, beispielsweise, wenn eine elektronische Steuereinheit 5 nicht vorhanden ist.Furthermore, a direct activation and deactivation of the thermoelectric ignition safety valve 17 can take place, for example if an electronic control unit 5 is not present.

Aufstellung der BezugszeichenList of reference signs

11 Gehäusecasing 2929 Lagerstelledepository 22 Gaseinganggas input 3030 RundringO-ring 33 Zündgasausgangignition gas output 3131 Antriebseinheitdrive unit 44 HauptgasausgangMain gas output 3232 Zündbrennerpilot burner 55 Steuereinheitcontrol unit 3333 Hauptbrennermain burner 66 Fernbedienungremote control 3434 Temperatursensortemperature sensor 77 InbetriebnahmeInstallation 3535 Hauptventilmain valve 88th Steuerungseinheitcontrol unit 3636 Ventiltellervalve disc 99 Lagerstelledepository 3737 Zündelektrodeignition electrode 1010 Betätigungsstangeactuating rod 1111 Elektromagnetelectromagnet 1212 RundringO-ring 1313 Rückholfederreturn spring 1414 Gegenlagerthrust bearing 1515 Trennwandpartition wall 1616 Öffnungopening 1717 Zündsicherungsventilignition locking 1818 Zündsicherungsmagnetignition locking 1919 Ankeranchor 2020 Ventilstangevalve rod 2121 Ventiltellervalve disc 2222 Thermoelementthermocouple 2323 RückstellfederReturn spring 2424 Schalterswitch 2525 VentilValve 2626 VentilValve 2727 Öffnungopening 2828 Stößeltappet

Claims (4)

  1. Gas regulating fitting for a gas stove or the like with a thermoelectric safety pilot valve (17) and a main valve (35), which serve jointly both as a safety pilot and as a means of splitting the gas flow into proportions for a main burner (33) and a pilot burner (32), with a control unit (8) downstream of the main valve (35) for the gas flow flowing to the main burner (33) and with additional secondary functional elements, characterised in that the gas regulating fitting has a sensor (34) known per se by means of which the operating state of the main burner (33) can be ascertained in such a way that on a change in the operating state of the main burner (33) from "On" to "Off" in response to a signal emitted by the sensor (34), the thermoelectric safety pilot valve (17) assumes its closed position, wherein a delay element is arranged between the sensor (34) and the thermoelectric safety pilot valve (17).
  2. Gas regulating fitting according to claim 1, characterised in that the sensor (34) comprises a flow sensor which ascertains the operating state of the main burner (33) by means of the gas flow flowing to the main burner (33).
  3. Gas regulating fitting according to claim 1, characterised in that the sensor (34) comprises a temperature sensor which ascertains the operating state of the main burner (33) by means of the temperature at the main burner (33).
  4. Gas regulating fitting according to claim 1, characterised in that the sensor (34) for ascertaining the operating state of the main burner (33) is connected to the control unit (8).
EP05715904.8A 2004-03-12 2005-03-10 Gas regulating fitting Not-in-force EP1728025B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004012202A DE102004012202A1 (en) 2004-03-12 2004-03-12 Gas regulating valve
PCT/EP2005/002522 WO2005088195A1 (en) 2004-03-12 2005-03-10 Gas regulating fitting

Publications (2)

Publication Number Publication Date
EP1728025A1 EP1728025A1 (en) 2006-12-06
EP1728025B1 true EP1728025B1 (en) 2015-07-29

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ID=34895305

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EP05715904.8A Not-in-force EP1728025B1 (en) 2004-03-12 2005-03-10 Gas regulating fitting

Country Status (12)

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US (1) US7891972B2 (en)
EP (1) EP1728025B1 (en)
JP (1) JP4729034B2 (en)
KR (1) KR101194462B1 (en)
AR (1) AR049623A1 (en)
AU (1) AU2005220312B2 (en)
CA (1) CA2559437C (en)
DE (2) DE202004021583U1 (en)
RU (1) RU2378579C2 (en)
TW (1) TWI353436B (en)
UA (1) UA88161C2 (en)
WO (1) WO2005088195A1 (en)

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AU2005220312A1 (en) 2005-09-22
CA2559437A1 (en) 2005-09-22
DE202004021583U1 (en) 2009-05-20
AU2005220312B2 (en) 2009-10-29
WO2005088195A1 (en) 2005-09-22
TWI353436B (en) 2011-12-01
US20070275334A1 (en) 2007-11-29
AR049623A1 (en) 2006-08-23
JP2007528977A (en) 2007-10-18
RU2006135343A (en) 2008-04-20
KR20060130248A (en) 2006-12-18
US7891972B2 (en) 2011-02-22
DE102004012202A1 (en) 2005-09-29
EP1728025A1 (en) 2006-12-06
UA88161C2 (en) 2009-09-25
JP4729034B2 (en) 2011-07-20
RU2378579C2 (en) 2010-01-10
CA2559437C (en) 2013-06-25
KR101194462B1 (en) 2012-10-24
TW200530537A (en) 2005-09-16

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