EP2567154B1 - Gas regulating fitting - Google Patents

Gas regulating fitting Download PDF

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Publication number
EP2567154B1
EP2567154B1 EP20110721709 EP11721709A EP2567154B1 EP 2567154 B1 EP2567154 B1 EP 2567154B1 EP 20110721709 EP20110721709 EP 20110721709 EP 11721709 A EP11721709 A EP 11721709A EP 2567154 B1 EP2567154 B1 EP 2567154B1
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EP
European Patent Office
Prior art keywords
gas
valve
housing
gas regulating
control unit
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.)
Active
Application number
EP20110721709
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German (de)
French (fr)
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EP2567154A1 (en
Inventor
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
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Publication date
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Priority to PL11721709T priority Critical patent/PL2567154T3/en
Priority to SI201130260T priority patent/SI2567154T1/en
Publication of EP2567154A1 publication Critical patent/EP2567154A1/en
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Publication of EP2567154B1 publication Critical patent/EP2567154B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/26—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/18—Groups of two or more valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/22—Fuel valves cooperating with magnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/24—Valve details
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7793—With opening bias [e.g., pressure regulator]

Definitions

  • the invention relates to a gas control valve with electronic ignition for a gas-fired heating device according to the preamble of the first claim.
  • Gas control valves for a gas fired heater such as a gas heater or the like, are available in a variety of designs. They serve to ignite and to control a gas flow flowing to a burner.
  • an ignition safety magnet is triggered by generating a holding current provided by a voltage source for keeping open a gas flow blocking the thermoelectric ignition safety valve.
  • an electromagnet is briefly energized with a voltage pulse, whereby an aligned for Zünd Anlagensventil actuating rod so far in the longitudinal direction against the force of a return spring is movable, that the Zündtechnischsventil whose valve plate mounted on a valve rod and loaded by a return spring in the closing direction is, opens and thereby applies the armature of the Zündtechnischsmagneten, which is firmly connected to the valve rod.
  • the armature is held by the holding current coming from the voltage source until a thermocouple provides the necessary holding current after ignition of the gas flow.
  • the winding of the Zündtechnischsmagneten one hand in the circuit of a from the pilot flame heatable thermocouple and on the other hand can be controlled via the electronic control unit.
  • a cover is movably mounted on the housing of the gas control valve, which covers in a first position serving to actuate a thermoelectric Zünd Anlagensventils and a main valve plunger and a probe of a piezoelectric ignition element.
  • a second position of the cover is ensured by a forcibly during the adjustment of the cover member actuation of the plunger that the main valve is in the closed position.
  • the push button and the plunger are released in such a way that a manual actuation of the same makes it possible to ignite the gas flow.
  • the invention is based on the problem in a gas control valve with electronic ignition of the gas stream to ensure a simple manual operation according to the preamble of the first claim. In particular, switching on and off should be made possible with one movement each.
  • the problem is solved in that a microswitch connected to the electronic control unit is arranged on the housing and, in the case of manual actuation of the plunger in the longitudinal direction against the force the return spring is actuated.
  • the electronic control unit receives an electrical signal, whereby activation of the same and thus ignition of the flowing through the open Zünd Anlagensventil gas flow takes place when switched off the gas control valve, whereas in the already switched on state of Gasregelarmatur an interruption of the thermoelectric ignition valve flowing holding current and thus a deactivation the gas control valve takes place.
  • the gas control valve when a display is arranged on the housing, via which the operating state can be displayed.
  • This can be, for example, an LED that lights up when the gas control valve is switched on.
  • the exemplary gas control valve according to the invention shown in the figures is a switching and control device which is intended for installation in gas-operated heating devices 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, not shown, and a main burner, also not shown.
  • To control serves an electronic control unit, not shown, which is located in this example, together with a voltage source in a separate location-independent housing, not shown.
  • a plunger 10 For commissioning a plunger 10 is longitudinally movably guided in a bearing point 9 of the upper part 2, which extends with its end into the interior of the housing 1, for example, by round rings 11, the necessary gas tightness is ensured.
  • the movement of the plunger 10 in the longitudinal direction is possible only against the force of a support in the upper part 2 return spring 16.
  • a control element 13 On the outwardly projecting end of the plunger 10, a control element 13 is attached, which has a switching contour 14 on its lateral surface. Between upper part 2 and cover 5, a microswitch 12 is further attached, the switching element 15 is actuated via the switching contour 14.
  • the starting position to be assumed under the force of the return spring 16 is achieved in that the valve disk 20 of the main valve 19 bears against the upper part 2.
  • the interior of the upper part 2 and lower part 3 formed part of the housing 1 is divided by a partition wall 24 into different rooms. Escaping in extension of the plunger 10, the partition wall 24 has an opening 17, the upper part 2 facing side of the valve seat 25 for the valve disc 20, and thus in conjunction with this, the main valve 19, while the other side of the opening 17 to a Zündracsventil 26 associated valve seat 28 forms. Between the two valve seats 25/28 opens into the opening 17 leading to Zündgasausgang 7 Zündgasbohrung 18.
  • the Zündschsventil 26 is influenced by a gas-tight in a bearing of the housing 1 thermoelectric Zündtechnischsmagneten 27, which is located downstream of the gas inlet 6.
  • thermoelectric Zündschsmagnet 27 acts on an armature which is rigidly connected to a valve rod 29, on which the valve disc 30 of the Zündtechnischsventils 26 is attached. Via the electronic control unit as well as via a thermocouple exposed to the pilot flame, the thermoelectric ignition safety magnet 27 can be excited.
  • the construction and mode of operation of the ignition-securing magnet 27 are familiar to the person skilled in the art, so that it is possible to dispense with the description of further details. It should be emphasized only that a return spring 31 strives to deduct the armature on the serving as a spring bearing valve plate 30 from the ignition fuse magnet 27.
  • the housing 1 In the flow direction behind the startup is located within the housing 1, not shown, as known to those skilled control unit for the gas flowing to the main burner gas. It usually consists of a switch which controls the amount of gas flowing to the main burner.
  • the switch is designed, for example, so that a modulating control is effected via a first valve with jump-like switching on and off in the partial load range via a second valve.
  • the partial load flow is limited by an adjustable nozzle.
  • a longitudinally movable actuating rod which is connected to the switch and projects longitudinally, protrudes from the housing 1, which simultaneously forms a bearing for it, and is connected to a control element 23.
  • an LED 32 which is connected to the electronic control unit and connected so that it lights up when the gas control valve is turned on.
  • the operation of the gas control valve is as follows:
  • the gas control valve is shown in the off state.
  • the operating element 13 is under the action of the return spring 16 in its initial position.
  • the main valve 19 is indeed open, but the Zündtechnischsmagnet 27 is not energized, so that the Zündtechnischsventil 26 is closed and no gas can flow to the burner.
  • the main valve 19 is first closed and then the ignition safety valve 26 is opened so far that the armature on Zünd Anlagensmagneten 27 is present.
  • the ignition gas can now flow to the Zündgasausgang 7 via the Zündgasbohrung 18 and from there via a Zündgas effet, not shown, to the pilot burner.
  • the switching element 15 of the microswitch 12 is actuated via the switching contour 14 and ignited via a signal sent to the electronic control unit electrical signal through this gas flowing out of the pilot burner.
  • the switch can be actuated in a known manner, by first causing a sudden opening of the second valve.
  • the limited by an opening constant amount of gas flows through the main gas outlet 8 through a main gas line also not shown to the main burner and is ignited via the pilot flame.
  • the flames burn with a minimum height.
  • the amount of gas flowing to the main gas burner is increased uniformly, since now the first valve opens continuously, whereby a uniform increase in the amount of gas flowing through the first valve is achieved.
  • the main valve 19 is closed and thus the gas flow to the main burner is interrupted.
  • an electrical signal is again interrupted to the electronic control unit and via this the power supply from the thermocouple to the Zündtechnischsmagneten 27.
  • the Zündtechnischsventil 26 is no longer held by the Zündtechnischsmagneten 27 and goes into the closed position as soon as the control element 13 is no longer actuated and goes back to its original position. Furthermore, the LED 32 goes out.
  • the gas control valve is in the deactivated state.
  • control unit for the gas flowing to the main burner gas quantity can be omitted, if always a constant amount of gas to flow to the main burner and it is not necessary to control this gas flow.
  • the gas control valve for example, even more functional units, such as a pressure regulator or the like, have.
  • the electrical signal sent to the electronic control unit can additionally be used, for example, to provide the necessary holding current initially by a voltage source. until the thermocouple is activated.

Description

Technisches GebietTechnical area

Die Erfindung betrifft eine Gasregelarmatur mit elektronischer Zündung für eine gasbetriebene Heizeinrichtung nach dem Oberbegriff des ersten Patentanspruches.The invention relates to a gas control valve with electronic ignition for a gas-fired heating device according to the preamble of the first claim.

Stand der TechnikState of the art

Gasregelarmaturen für eine gasbetriebene Heizeinrichtung, wie einen Gasheizofen oder dergleichen, gibt es in einer Vielzahl von Ausführungen. Sie dienen zur Zündung und zur Regelung eines einem Brenner zufließenden Gasstromes.Gas control valves for a gas fired heater, such as a gas heater or the like, are available in a variety of designs. They serve to ignite and to control a gas flow flowing to a burner.

So ist in der DE 103 05 929 B3 eine Anordnung zum Zünden eines Gasstromes beschrieben. Hier wird zum Zünden eines Gasstromes über eine elektronische Steuereinheit ein Zündsicherungsmagnet durch Erzeugung eines von einer Spannungsquelle bereitgestellten Haltestromes zur Offenhaltung eines den Gasstrom absperrenden thermoelektrischen Zündsicherungsventils angesteuert. Sobald der Zündsicherungsmagnet erregt ist, wird ein Elektromagnet kurzzeitig mit einem Spannungsimpuls erregt, wodurch eine zum Zündsicherungsventil fluchtende Betätigungsstange so weit in Längsrichtung gegen die Kraft einer Rückholfeder bewegbar ist, dass das Zündsicherungsventil, dessen Ventilteller auf einer Ventilstange gelagert und durch eine Rückstellfeder in Schließrichtung belastet ist, öffnet und dabei den Anker des Zündsicherungsmagneten anlegt, der fest mit der Ventilstange verbunden ist. Der Anker wird durch den von der Spannungsquelle kommenden Haltestrom solange gehalten, bis ein Thermoelement nach erfolgter Zündung des Gasstromes den notwendigen Haltestrom zur Verfügung stellt. Dazu liegt die Wicklung des Zündsicherungsmagneten einerseits im Stromkreis eines von der Zündflamme beheizbaren Thermoelements und ist andererseits über die elektronische Steuereinheit ansteuerbar.So is in the DE 103 05 929 B3 an arrangement for igniting a gas stream described. Here, to ignite a gas flow via an electronic control unit, an ignition safety magnet is triggered by generating a holding current provided by a voltage source for keeping open a gas flow blocking the thermoelectric ignition safety valve. Once the Zündsicherungsmagnet is energized, an electromagnet is briefly energized with a voltage pulse, whereby an aligned for Zündsicherungsventil actuating rod so far in the longitudinal direction against the force of a return spring is movable, that the Zündsicherungsventil whose valve plate mounted on a valve rod and loaded by a return spring in the closing direction is, opens and thereby applies the armature of the Zündsicherungsmagneten, which is firmly connected to the valve rod. The armature is held by the holding current coming from the voltage source until a thermocouple provides the necessary holding current after ignition of the gas flow. For this purpose, the winding of the Zündsicherungsmagneten one hand in the circuit of a from the pilot flame heatable thermocouple and on the other hand can be controlled via the electronic control unit.

Hierbei ist es von Nachteil, dass eine Betätigung nur mittels einer Fernbedienung erfolgen kann. Direkt am Gerät ist eine Bedienung nicht möglich.It is disadvantageous that an operation can only be done by means of a remote control. Operation directly on the device is not possible.

Aus der DE 103 09 469 B3 ist neben einer Betätigung mittels einer Fernbedienung auch eine manuelle Zündung möglich. Dazu ist auf dem Gehäuse der Gasregelarmatur ein Abdeckelement beweglich gelagert, das in einer ersten Stellung einen zur Betätigung eines thermoelektrischen Zündsicherungsventils und eines Hauptventils dienenden Stößel und einen Taster eines piezoelektrischen Zündelementes abdeckt. In einer zweiten Stellung des Abdeckelementes wird über eine bei der Verstellung des Abdeckelementes zwangsweise stattfindenden Betätigung des Stößels sichergestellt, dass sich das Hauptventil in Geschlossenstellung befindet. Weiterhin sind in dieser Stellung der Taster und der Stößel derart freigegeben, dass über eine manuelle Betätigung derselben ein Zünden des Gasstromes ermöglicht wird.From the DE 103 09 469 B3 In addition to an operation by means of a remote control, a manual ignition is possible. For this purpose, a cover is movably mounted on the housing of the gas control valve, which covers in a first position serving to actuate a thermoelectric Zündsicherungsventils and a main valve plunger and a probe of a piezoelectric ignition element. In a second position of the cover is ensured by a forcibly during the adjustment of the cover member actuation of the plunger that the main valve is in the closed position. Furthermore, in this position, the push button and the plunger are released in such a way that a manual actuation of the same makes it possible to ignite the gas flow.

Bei dieser Ausführung ist es von Nachteil, dass eine manuelle Bedienung der Gasregelarmatur nur mit Aufwand möglich ist. Desweiteren ist die Betätigung kompliziert und aufwendig.In this embodiment, it is disadvantageous that a manual operation of the gas control valve is possible only with effort. Furthermore, the operation is complicated and expensive.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt das Problem zugrunde bei einer Gasregelarmatur mit elektronischer Zündung des Gasstromes nach dem Oberbegriff des 1. Patentanspruches eine einfache manuelle Bedienung zu gewährleisten. Insbesondere sollen Einschalten und Ausschalten mit jeweils einer Bewegung ermöglicht werden.The invention is based on the problem in a gas control valve with electronic ignition of the gas stream to ensure a simple manual operation according to the preamble of the first claim. In particular, switching on and off should be made possible with one movement each.

Erfindungsgemäß wird das Problem dadurch gelöst, dass auf dem Gehäuse ein mit der elektronischen Steuereinheit verbundener Mikroschalter angeordnet ist, der bei einer manuellen Betätigung des Stößels in Längsrichtung gegen die Kraft der Rückholfeder betätigt wird. Dadurch erhält die elektronische Steuereinheit ein elektrisches Signal, wodurch bei ausgeschaltetem Zustand der Gasregelarmatur eine Aktivierung derselben und damit eine Zündung des durch das geöffnete Zündsicherungsventil fließenden Gasstromes erfolgt, wohingegen im bereits eingeschaltetem Zustand der Gasregelarmatur eine Unterbrechung des zum thermoelektrischen Zündventils fließenden Haltestroms und somit eine Deaktivierung der Gasregelarmatur erfolgt.According to the invention, the problem is solved in that a microswitch connected to the electronic control unit is arranged on the housing and, in the case of manual actuation of the plunger in the longitudinal direction against the force the return spring is actuated. As a result, the electronic control unit receives an electrical signal, whereby activation of the same and thus ignition of the flowing through the open Zündsicherungsventil gas flow takes place when switched off the gas control valve, whereas in the already switched on state of Gasregelarmatur an interruption of the thermoelectric ignition valve flowing holding current and thus a deactivation the gas control valve takes place.

Damit wurde eine Lösung gefunden, mit der die weiter oben genannten Nachteile des Standes der Technik beseitigt wurden. Durch eine manuelle Betätigung des Stößels ist in einfacher Weise ein Wechsel des Betriebszustandes, d.h. ein Einschalten bzw. ein Ausschalten möglich.Thus, a solution was found with which the above-mentioned disadvantages of the prior art have been eliminated. By a manual operation of the plunger is a simple change of the operating state, i. switching on or off possible.

Eine vorteilhafte Ausgestaltung der Erfindung geht aus dem Unteranspruch hervor.An advantageous embodiment of the invention will become apparent from the dependent claim.

So erweist es sich als günstige Ausgestaltung der Gasregelarmatur, wenn auf dem Gehäuse eine Anzeige angeordnet ist, über die der Betriebszustand anzeigbar ist. Dies kann beispielsweise eine LED sein, die bei eingeschalteter Gasregelarmatur aufleuchtet.Thus, it proves to be a favorable embodiment of the gas control valve when a display is arranged on the housing, via which the operating state can be displayed. This can be, for example, an LED that lights up when the gas control valve is switched on.

Ausführungsbeispielembodiment

Anhand eines Ausführungsbeispiels wird die erfindungsgemäße Gasregelarmatur nachstehend unter Zuhilfenahme der Zeichnungen näher erläutert. Es zeigen:

Fig. 1
eine Ausführung einer Gasregelarmatur in teilweise geschnittener Darstellung in Geschlossenstellung,
Fig. 2
eine Ausführung einer Gasregelarmatur in teilweise geschnittener Darstellung bei Betätigung der Inbetriebnahme,
Reference to an embodiment, the gas control valve according to the invention will be explained below with reference to the drawings. Show it:
Fig. 1
an embodiment of a gas control valve in a partially sectioned view in the closed position,
Fig. 2
an embodiment of a gas control valve in a partially sectioned representation upon actuation of the commissioning,

Die in den Figuren dargestellte beispielhafte erfindungsgemäße Gasregelarmatur ist ein Schalt- und Regelgerät, das für den Einbau in gasbetriebene Heizeinrichtungen 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 nicht dargestellten Zündbrenner und einem ebenfalls nicht dargestellten Hauptbrenner.The exemplary gas control valve according to the invention shown in the figures is a switching and control device which is intended for installation in gas-operated heating devices 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, not shown, and a main burner, also not shown.

Die in den Figuren gezeigte und nachfolgend beschriebene Gasregelarmatur besteht aus einem Gehäuse 1, in dem sich verschiedene Funktionseinheiten, die teilweise über Bedienungselemente von außen betätigt werden können, befinden. Das Gehäuse ist aus einem Oberteil 2 und einem Unterteil 3, zwischen denen eine Flachdichtung 4 die äußere Dichtheit gewährleistet, sowie einer Abdeckhaube 5 zusammengesetzt. Desweiteren weist das Gehäuse 1 einen Gaseingang 6, einen Zündgasausgang 7 und einen Hauptgasausgang 8 auf. Sie besitzt folgende Funktionseinheiten:

  • Inbetriebnahme mit Zündsicherung
  • Steuerungseinheit für die zum Hauptbrenner strömende Gasmenge
The gas control valve shown in the figures and described below consists of a housing 1, in which various functional units, which can be partially operated via control elements from the outside, are located. The housing is composed of an upper part 2 and a lower part 3, between which a flat gasket 4 ensures the outer tightness, and a cover 5 composed. Furthermore, the housing 1 has a gas inlet 6, a Zündgasausgang 7 and a main gas outlet 8. It has the following functional units:
  • Commissioning with ignition protection
  • Control unit for the amount of gas flowing to the main burner

Zur Ansteuerung dient eine nicht dargestellte elektronische Steuereinheit, die sich in diesem Beispiel zusammen mit einer Spannungsquelle in einem separaten ortsunabhängigen nicht dargestellten Gehäuse befindet.To control serves an electronic control unit, not shown, which is located in this example, together with a voltage source in a separate location-independent housing, not shown.

Für die Inbetriebnahme ist in einer Lagerstelle 9 des Oberteiles 2 ein Stößel 10 längsbeweglich geführt, der mit seinem Ende in das Innere des Gehäuses 1 reicht, wobei zum Beispiel durch Rundringe 11 die notwendige Gasdichtheit gewährleistet wird. Die Bewegung des Stößels 10 in Längsrichtung ist dabei nur gegen die Kraft einer sich im Oberteil 2 abstützenden Rückholfeder 16 möglich. Auf dem nach außen ragenden Ende des Stößels 10 ist ein Bedienungselement 13 befestigt, das auf seiner Mantelfläche eine Schaltkontur 14 aufweist. Zwischen Oberteil 2 und Abdeckhaube 5 ist des Weiteren ein Mikroschalter 12 befestigt, dessen Schaltelement 15 über die Schaltkontur 14 betätigbar ist.For commissioning a plunger 10 is longitudinally movably guided in a bearing point 9 of the upper part 2, which extends with its end into the interior of the housing 1, for example, by round rings 11, the necessary gas tightness is ensured. The movement of the plunger 10 in the longitudinal direction is possible only against the force of a support in the upper part 2 return spring 16. On the outwardly projecting end of the plunger 10, a control element 13 is attached, which has a switching contour 14 on its lateral surface. Between upper part 2 and cover 5, a microswitch 12 is further attached, the switching element 15 is actuated via the switching contour 14.

Auf dem in das Innere des Oberteiles 2 ragenden Bereich des Stößels 10 ist ein zu einem Hauptventil 19 zugehöriger Ventilteller 20 verschiebbar geführt, der sich unter der Kraft einer Schließfeder 21, die einerseits am Oberteil 2 und andererseits am Ventilteller 20 anliegt, auf einem auf dem Stößel 10 befindlichen Anschlag 22 abstützt. Die unter der Kraft der Rückholfeder 16 einzunehmende Ausgangsstellung wird dadurch erreicht, dass der Ventilteller 20 des Hauptventils 19 am Oberteil 2 anliegt.On the projecting into the interior of the upper part 2 of the plunger 10 is a valve associated with a main valve 19 20 slidably guided, which rests under the force of a closing spring 21, on the one hand on the upper part 2 and on the other hand on the valve plate 20, on a on the Plunger 10 located stop 22 is supported. The starting position to be assumed under the force of the return spring 16 is achieved in that the valve disk 20 of the main valve 19 bears against the upper part 2.

Das Innere des durch Oberteil 2 und Unterteil 3 gebildeten Teiles des Gehäuses 1 wird durch eine Trennwand 24 in verschiedene Räume unterteilt. Fluchtend in Verlängerung des Stößels 10 weist die Trennwand 24 eine Öffnung 17 auf, deren dem Oberteil 2 zugewandte Seite den Ventilsitz 25 für den Ventilteller 20, und damit in Verbindung mit diesem das Hauptventil 19 bildet, während die andere Seite der Öffnung 17 einen zu einem Zündsicherungsventil 26 zugehörigen Ventilsitz 28 bildet. Zwischen beiden Ventilsitzen 25/28 mündet in die Öffnung 17 eine zum Zündgasausgang 7 führende Zündgasbohrung 18. Das Zündsicherungsventil 26 wird durch einen in einer Lagerstelle des Gehäuses 1 gasdicht angeordneten thermoelektrischen Zündsicherungsmagneten 27 beeinflusst, der sich stromab des Gaseinganges 6 befindet. Der thermoelektrische Zündsicherungsmagnet 27 wirkt auf einen Anker, der starr mit einer Ventilstange 29 verbunden ist, auf der der Ventilteller 30 des Zündsicherungsventils 26 befestigt ist. Über die elektronische Steuereinheit sowie über ein der Zündflamme ausgesetztes Thermoelement ist der thermoelektrische Zündsicherungsmagnet 27 erregbar.The interior of the upper part 2 and lower part 3 formed part of the housing 1 is divided by a partition wall 24 into different rooms. Escaping in extension of the plunger 10, the partition wall 24 has an opening 17, the upper part 2 facing side of the valve seat 25 for the valve disc 20, and thus in conjunction with this, the main valve 19, while the other side of the opening 17 to a Zündsicherungsventil 26 associated valve seat 28 forms. Between the two valve seats 25/28 opens into the opening 17 leading to Zündgasausgang 7 Zündgasbohrung 18. The Zündsicherungsventil 26 is influenced by a gas-tight in a bearing of the housing 1 thermoelectric Zündsicherungsmagneten 27, which is located downstream of the gas inlet 6. The thermoelectric Zündsicherungsmagnet 27 acts on an armature which is rigidly connected to a valve rod 29, on which the valve disc 30 of the Zündsicherungsventils 26 is attached. Via the electronic control unit as well as via a thermocouple exposed to the pilot flame, the thermoelectric ignition safety magnet 27 can be excited.

Der Aufbau und die Wirkungsweise des Zündsicherungsmagneten 27 sind im Übrigen dem Fachmann geläufig, so dass auf die Beschreibung weiterer Einzelheiten verzichtet werden kann. Hervorzuheben ist nur noch, dass eine Rückstellfeder 31 bestrebt ist, den Anker über den als Federlager dienenden Ventilteller 30 vom Zündsicherungsmagneten 27 abzuziehen.Incidentally, the construction and mode of operation of the ignition-securing magnet 27 are familiar to the person skilled in the art, so that it is possible to dispense with the description of further details. It should be emphasized only that a return spring 31 strives to deduct the armature on the serving as a spring bearing valve plate 30 from the ignition fuse magnet 27.

In Strömungsrichtung hinter der Inbetriebnahme befindet sich innerhalb des Gehäuses 1 die nicht dargestellte, da dem Fachmann bekannte Steuerungseinheit für die zum Hauptbrenner strömende Gasmenge. Sie besteht üblicherweise aus einem Schalter, der die Menge des zum Hauptbrenner strömenden Gases steuert.In the flow direction behind the startup is located within the housing 1, not shown, as known to those skilled control unit for the gas flowing to the main burner gas. It usually consists of a switch which controls the amount of gas flowing to the main burner.

Der Schalter ist beispielsweise so ausgeführt, dass eine modulierende Steuerung über ein erstes Ventil mit sprungförmiger Ein- und Ausschaltung im Teillastbereich über ein zweites Ventil bewirkt wird. Dabei wird der Teillastdurchfluss durch eine einstellbare Düse begrenzt.The switch is designed, for example, so that a modulating control is effected via a first valve with jump-like switching on and off in the partial load range via a second valve. The partial load flow is limited by an adjustable nozzle.

Ein mit dem Schalter in Verbindung stehende und längsbewegliche Betätigungsstange ragt aus dem gleichzeitig eine Lagerstelle für ihn bildenden Gehäuse 1 heraus und ist mit einem Bedienungselement 23 verbunden.A longitudinally movable actuating rod, which is connected to the switch and projects longitudinally, protrudes from the housing 1, which simultaneously forms a bearing for it, and is connected to a control element 23.

Auf der Stirnfläche der Abdeckhaube befindet sich eine Anzeige, in diesem Ausführungsbeispiel eine LED 32, die mit der elektronischen Steuereinheit verbunden und so geschaltet ist, dass sie bei eingeschalteter Gasregelarmatur leuchtet.On the end face of the cover there is a display, in this embodiment, an LED 32 which is connected to the electronic control unit and connected so that it lights up when the gas control valve is turned on.

Die Wirkungsweise der Gasregelarmatur ist wie folgt:The operation of the gas control valve is as follows:

In der Fig. 1 ist die Gasregelarmatur im ausgeschalteten Zustand gezeigt. Das Bedienungselement 13 befindet sich unter der Wirkung der Rückholfeder 16 in seiner Ausgangslage. Dabei ist das Hauptventil 19 zwar geöffnet, aber der Zündsicherungsmagnet 27 ist nicht erregt, so dass das Zündsicherungsventil 26 geschlossen ist und kein Gas zum Brenner strömen kann.In the Fig. 1 the gas control valve is shown in the off state. The operating element 13 is under the action of the return spring 16 in its initial position. In this case, the main valve 19 is indeed open, but the Zündsicherungsmagnet 27 is not energized, so that the Zündsicherungsventil 26 is closed and no gas can flow to the burner.

Um die Gasregelarmatur einzuschalten muss über das Bedienungselement 13 der Stößels 10 in seiner Längsrichtung gegen die Kraft der Rückholfeder 16 bewegt werden, so dass sich die in der Fig. 2 gezeigte Stellung ergibt.To turn on the gas control valve must be moved over the operating element 13 of the plunger 10 in its longitudinal direction against the force of the return spring 16, so that in the Fig. 2 shown position results.

Dabei wird zuerst das Hauptventil 19 geschlossen und anschließend das Zündsicherungsventil 26 so weit geöffnet, dass der Anker am Zündsicherungsmagneten 27 anliegt. Das Zündgas kann nunmehr über die Zündgasbohrung 18 zum Zündgasausgang 7 und von dort über eine nicht dargestellte Zündgasleitung zum Zündbrenner strömen. Außerdem wird über die Schaltkontur 14 das Schaltelement 15 des Mikroschalters 12 betätigt und über ein an die elektronische Steuereinheit gesandtes elektrisches Signal durch diese das am Zündbrenner ausströmende Gas gezündet.In this case, the main valve 19 is first closed and then the ignition safety valve 26 is opened so far that the armature on Zündsicherungsmagneten 27 is present. The ignition gas can now flow to the Zündgasausgang 7 via the Zündgasbohrung 18 and from there via a Zündgasleitung, not shown, to the pilot burner. In addition, the switching element 15 of the microswitch 12 is actuated via the switching contour 14 and ignited via a signal sent to the electronic control unit electrical signal through this gas flowing out of the pilot burner.

Sobald die Zündflamme brennt, fließt über ein von der Zündflamme beeinflussbares Thermoelement ein Haltestrom zum Zündsicherungsmagneten 27, so dass ab diesem Zeitpunkt das Zündsicherungsventil 26 in der Offenstellung gehalten wird. Gleichzeitig leuchtet die LED 32 auf. Das Bedienungselement 13 muss nicht mehr gehalten werden und geht unter der Wirkung der Rückholfeder 16 in seine Ausgangslage zurück, wobei das Hauptventil 19 geöffnet wird.As soon as the ignition flame burns, a holding current flows to the ignition securing magnet 27 via a thermocouple which can be influenced by the pilot flame, so that the ignition safety valve 26 is held in the open position as of this point in time. At the same time the LED 32 lights up. The control element 13 no longer needs to be held and returns under the action of the return spring 16 in its initial position, the main valve 19 is opened.

Nunmehr kann über das Bedienungselement 23 der Schalter in bekannter Art und Weise betätigt werden, indem es zuerst zu einem schlagartigen Öffnen des zweiten Ventils kommt. Die durch eine Öffnung begrenzte konstante Gasmenge strömt über den Hauptgasausgang 8 durch eine ebenfalls nicht dargestellte Hauptgasleitung zum Hauptbrenner und wird über die Zündflamme gezündet. Die Flammen brennen mit einer Minimalhöhe. Bei einer weiteren Betätigung des Bedienungselementes 23 wird die zum Hauptgasbrenner strömende Gasmenge gleichmäßig vergrößert, da nunmehr das erste Ventil kontinuierlich öffnet, wodurch eine gleichmäßige Erhöhung der durch das erste Ventil durchströmenden Gasmenge erreicht wird.Now, via the operating element 23, the switch can be actuated in a known manner, by first causing a sudden opening of the second valve. The limited by an opening constant amount of gas flows through the main gas outlet 8 through a main gas line also not shown to the main burner and is ignited via the pilot flame. The flames burn with a minimum height. In a further actuation of the operating element 23, the amount of gas flowing to the main gas burner is increased uniformly, since now the first valve opens continuously, whereby a uniform increase in the amount of gas flowing through the first valve is achieved.

Wird das Bedienungselement 13 im aktivierten Zustand der Gasregelarmatur, angezeigt durch eine leuchtende LED 32, betätigt, so wird das Hauptventil 19 geschlossen und damit der Gasstrom zum Hauptbrenner unterbrochen. Über die gleichzeitig erfolgende Betätigung des Mikroschalters 12 wird wieder ein elektrisches Signal an die elektronische Steuereinheit und über diese die Stromzuführung vom Thermoelement zum Zündsicherungsmagneten 27 unterbrochen. Das Zündsicherungsventil 26 wird nicht mehr vom Zündsicherungsmagneten 27 gehalten und geht in die Geschlossenstellung, sobald das Bedienungselement 13 nicht mehr betätigt wird und in seine Ausgangslage zurückgeht. Weiterhin erlischt auch die LED 32. Die Gasregelarmatur befindet sich im deaktivierten Zustand.If the operating element 13 is activated in the activated state of the gas control valve, indicated by a luminous LED 32, then the main valve 19 is closed and thus the gas flow to the main burner is interrupted. On the simultaneous operation of the microswitch 12, an electrical signal is again interrupted to the electronic control unit and via this the power supply from the thermocouple to the Zündsicherungsmagneten 27. The Zündsicherungsventil 26 is no longer held by the Zündsicherungsmagneten 27 and goes into the closed position as soon as the control element 13 is no longer actuated and goes back to its original position. Furthermore, the LED 32 goes out. The gas control valve is in the deactivated state.

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 beispielsweise die weiter oben genannte und beschriebene Steuerungseinheit für die zum Hauptbrenner strömende Gasmenge entfallen kann, wenn immer eine konstante Gasmenge zum Hauptbrenner strömen soll und es nicht erforderlich ist diesen Gasstrom zu regeln. Andererseits kann die Gasregelarmatur beispielsweise noch weitere Funktionseinheiten, wie beispielsweise einen Druckregler o.ä., aufweisen.So it is understood that, for example, the above-mentioned and described control unit for the gas flowing to the main burner gas quantity can be omitted, if always a constant amount of gas to flow to the main burner and it is not necessary to control this gas flow. On the other hand, the gas control valve, for example, even more functional units, such as a pressure regulator or the like, have.

Um beim Einschalten der Gasregelarmatur das Halten des Bedienungselementes 13 bis zum Fließen des Haltestromes zum Zündsicherungsmagneten 27 zu vermeiden, kann beispielsweise auch durch das an die elektronische Steuereinheit gesandte elektrisches Signal zusätzlich bewirkt werden, dass der notwendige Haltestrom anfangs durch eine Spannungsquelle zur Verfügung gestellt wird, bis das Thermoelement aktiviert ist.In order to avoid holding the operating element 13 until the holding current flows to the ignition locking magnet 27 when switching on the gas control valve, the electrical signal sent to the electronic control unit can additionally be used, for example, to provide the necessary holding current initially by a voltage source. until the thermocouple is activated.

Aufstellung der BezugszeichenList of reference signs

11
Gehäusecasing
22
Oberteiltop
33
Unterteillower part
44
Flachdichtunggasket
55
Abdeckhaubecover
66
Gaseinganggas input
77
Zündgasausgangignition gas output
88th
HauptgasausgangMain gas output
99
Lagerstelledepository
1010
Stößeltappet
1111
RundringO-ring
1212
Mikroschaltermicroswitch
1313
Bedienungselementoperating element
1414
Schaltkonturswitching contour
1515
Schaltelementswitching element
1616
Rückholfederreturn spring
1717
Öffnungopening
1818
ZündgasbohrungZündgasbohrung
1919
Hauptventilmain valve
2020
Ventiltellervalve disc
2121
Schließfederclosing spring
2222
Anschlagattack
2323
Bedienungselementoperating element
2424
Trennwandpartition wall
2525
Ventilsitzvalve seat
2626
Zündsicherungsventilignition locking
2727
Zündsicherungsmagnetignition locking
2828
Ventilsitzvalve seat
2929
Ventilstangevalve rod
3030
Ventiltellervalve disc
3131
RückstellfederReturn spring
3232
LEDLED

Claims (2)

  1. Gas regulating fitting with electronic ignition for a gas-fired heating device or the like with an electronic control unit fed by a voltage source, a thermoelectric safety pilot valve (26) and a main valve (19) which jointly serve both as a safety pilot and also to split the gas flow into components for a main burner and a pilot light, and are accommodated with additional, secondary functional elements in a segmented housing (1), a tappet (10) arranged axially to the safety pilot valve (26) and the main valve (19), which projects from the gasconducting chamber of the housing (1) and can be activated in a longitudinal direction against the force of a restoring spring (16) such that the safety pilot valve (26) is in the open position and the main valve (19) is in the closed position, characterised in that a microswitch (12) connected to the electronic control unit is arranged on the housing (1) and is switched in a longitudinal direction against the force of the restoring spring (16) on a manual activation of the tappet (10) so that the electronic control unit receives an electrical signal, whereby the gas regulating fitting is activated in its switched-off condition and the gas flow flowing through the opened safety pilot valve (26) is therefore ignited, whereas the holding current flowing to the thermoelectric safety pilot valve (26) is interrupted when the gas regulating fitting is in the switched on state, and the gas regulating fitting is therefore deactivated.
  2. Gas regulating fitting according to Claim 1, characterised in that a display, preferably an LED (32), is displayed on the housing (1) by means of which the operating mode can be displayed.
EP20110721709 2010-05-05 2011-05-03 Gas regulating fitting Active EP2567154B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL11721709T PL2567154T3 (en) 2010-05-05 2011-05-03 Gas regulating fitting
SI201130260T SI2567154T1 (en) 2010-05-05 2011-05-03 Gas regulating fitting

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010019960 DE102010019960B4 (en) 2010-05-05 2010-05-05 Gas regulating valve
PCT/EP2011/002181 WO2011137996A1 (en) 2010-05-05 2011-05-03 Gas regulating fitting

Publications (2)

Publication Number Publication Date
EP2567154A1 EP2567154A1 (en) 2013-03-13
EP2567154B1 true EP2567154B1 (en) 2014-06-11

Family

ID=44146622

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EP20110721709 Active EP2567154B1 (en) 2010-05-05 2011-05-03 Gas regulating fitting

Country Status (11)

Country Link
US (1) US9157636B2 (en)
EP (1) EP2567154B1 (en)
AU (1) AU2011250245B2 (en)
CA (1) CA2796545C (en)
DE (1) DE102010019960B4 (en)
ES (1) ES2493216T3 (en)
PL (1) PL2567154T3 (en)
RU (1) RU2557833C2 (en)
SI (1) SI2567154T1 (en)
UA (1) UA107374C2 (en)
WO (1) WO2011137996A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011116797B4 (en) 2011-10-24 2016-12-22 Mertik Maxitrol Gmbh & Co. Kg Gas regulating valve

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US2691705A (en) * 1947-07-05 1954-10-12 Gen Controls Co Safety control system for fuel burners
US2637385A (en) * 1951-12-10 1953-05-05 Tappan Stove Co Automatic ignition and control mechanism for oven burners
US4055164A (en) * 1976-07-09 1977-10-25 Wu Heng Tu Apparatus for automatic gas ignition control
FR2413614A1 (en) * 1977-12-28 1979-07-27 Inoue Japax Res VALVE CONTROL SYSTEM FOR A GAS BURNER
US4190414A (en) * 1978-04-17 1980-02-26 W. M. Cissell Manufacturing Company Fail-safe gas feed and ignition sequence control apparatus and method for a gas-fired appliance
FR2458755A1 (en) * 1979-06-05 1981-01-02 Bourguignonne Mec Smb SAFETY IGNITION DEVICE FOR A BURNER VALVE
FR2604510B3 (en) * 1986-09-26 1988-11-18 Cramer Gmbh & Co Kg GAS COOKER HAVING A COOKING BURNER LOCATED BELOW A VITROCERAME PLATE
US5094259A (en) * 1990-05-10 1992-03-10 Hsu Chung Hsiung Automatic shut-off safety device for gas stove
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DE19746788C1 (en) 1997-10-23 1999-05-12 Mertik Maxitrol Gmbh & Co Kg Gas control valve
GB9907071D0 (en) * 1999-03-29 1999-05-19 Concentric Controls Ltd Valve assembly
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DE10305929B3 (en) 2003-02-13 2004-09-30 Mertik Maxitrol Gmbh & Co. Kg Method and arrangement for igniting a gas stream
DE10305928B3 (en) * 2003-02-13 2004-10-07 Mertik Maxitrol Gmbh & Co. Kg Method and circuit arrangement for igniting a gas stream
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DE10309469B3 (en) * 2003-03-03 2004-10-21 Mertik Maxitrol Gmbh & Co. Kg Gas regulating valve
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RU83596U1 (en) * 2009-02-25 2009-06-10 Открытое акционерное общество "Жуковский машиностроительный завод" WATER BOILER
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Also Published As

Publication number Publication date
RU2012148838A (en) 2014-06-10
RU2557833C2 (en) 2015-07-27
ES2493216T3 (en) 2014-09-11
WO2011137996A1 (en) 2011-11-10
PL2567154T3 (en) 2014-11-28
DE102010019960B4 (en) 2012-09-13
US20130048109A1 (en) 2013-02-28
SI2567154T1 (en) 2014-10-30
CA2796545C (en) 2018-10-30
UA107374C2 (en) 2014-12-25
DE102010019960A1 (en) 2011-11-10
AU2011250245B2 (en) 2015-03-05
US9157636B2 (en) 2015-10-13
EP2567154A1 (en) 2013-03-13
CA2796545A1 (en) 2011-11-10

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