EP3759391B1 - Device for indicating the status of a gas burner - Google Patents

Device for indicating the status of a gas burner Download PDF

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Publication number
EP3759391B1
EP3759391B1 EP19708392.6A EP19708392A EP3759391B1 EP 3759391 B1 EP3759391 B1 EP 3759391B1 EP 19708392 A EP19708392 A EP 19708392A EP 3759391 B1 EP3759391 B1 EP 3759391B1
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EP
European Patent Office
Prior art keywords
gas
membrane
chamber
burner
control apparatus
Prior art date
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EP19708392.6A
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German (de)
French (fr)
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EP3759391A1 (en
Inventor
Barbara Happe
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Maxitrol GmbH and Co KG
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Maxitrol GmbH and Co KG
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Priority to PL19708392T priority Critical patent/PL3759391T3/en
Priority to SI201930215T priority patent/SI3759391T1/en
Publication of EP3759391A1 publication Critical patent/EP3759391A1/en
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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
    • F23N1/007—Regulating fuel supply using mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
    • H01H35/346—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm in which the movable contact is formed or directly supported by the diaphragm
    • 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
    • F23N2235/20—Membrane valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2241/00—Applications
    • F23N2241/08—Household apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2900/00—Special features of, or arrangements for controlling combustion
    • F23N2900/05005—Mounting arrangements for sensing, detecting or measuring devices

Definitions

  • the invention relates to a device for displaying the status of a gas burner during operation with a gas control device with a liquid-filled temperature sensor.
  • This pressure sensor as a pressure switch is not designed for gas applications nor as an indicator of the operating status of a gas burner.
  • US2014/096850A1 describes the status display of the position of a gas burner valve, with the positioning of the gas burner valve being detected externally by a non-contact sensor. The position of the gas burner valve determined by the connected electronics is shown on a display.
  • the invention is based on the problem of providing a simple design and manufacture solution for a device for indicating the status of the gas burner when using a gas control device with a liquid-filled temperature controller, which works independently of the specific gas burner design and arrangement.
  • the applicability of the device for status display should not only remain limited to the status display of the gas burner, but also for other displays, such as ignition gas be suitable. Retrofitting existing installations should be possible with this device.
  • the device connected to an outlet of the gas control device to the gas burner consists of a housing which has at least two interconnected chambers, which are separated in a gas-tight manner by a membrane connected on one side to an electrically conductive component, with chamber A is connected to the gas outlet of the gas regulator, the membrane generates a lift through an opening in chamber A when the gas valve is open with the gas pressure of the gas burner, chamber B, in which the side of the membrane with the connected electrically conductive component is positioned, through the hub closes an electric circuit via contact elements led to the outside and displays the operating status in a suitable manner.
  • chamber A of the housing is designed with two connection points in order to serve as a status indicator for the ignition gas when connected to the ignition gas outlet in the supply line between the gas control device and the ignition gas burner.
  • Another favorable configuration of the device is when chamber A of the housing, which is designed with two connection points, is arranged as a fitting in the supply line between the gas control device and the gas burner.
  • Another possible configuration is when, instead of connecting a status display, a relay is connected to the contact, which in turn can switch external components dependently.
  • the simple structure and mode of operation of the device mean that it is not necessary to adjust the pressure of the device to suit the installation situation.
  • FIG 1 is an exemplary structure including the devices 1 and 1a according to the invention for status display of a gas burner 2 and a pilot gas burner 3 in connection with a gas control device 4 with a liquid-filled temperature controller, which is preferably intended for a gas-operated heating device or the like.
  • the gas control device 4 enables the operation and monitoring of a gas burner 2 as well as the setting and regulation of the desired temperature by controlling the amount of gas flowing to the gas burner.
  • the device 1 is mounted in a gas-tight manner on one of the two outputs 7a of the gas control device 4 .
  • the supply line 9 to the gas burner 2 is connected to the second gas outlet 7 .
  • the Each gas inlet 6 or 6a that is not connected to the gas network is sealed with a closure element (not shown), preferably a threaded plug.
  • the electrical contact elements 10 of the device 1 are electrically connected to the voltage source 11 and the LED 12 .
  • a second, modified device 1a according to the invention, shown in figure 5 is installed in the ignition gas supply line 13. Their electrical contact elements 10 are electrically connected to the voltage source 11 and the LED 12a.
  • the device 1 consists of a housing 14 with two interconnected chambers, the chamber A 17 and the chamber B 19.
  • the chamber A 17 for safety reasons made of metallic material is connected to the gas outlet 7a of the gas control device 4, in this Embodiment by a screw connection 25 that seals the thread.
  • a screw connection with a cylindrical thread 27 and a sealing element 26, as in 4 shown serve. Both chambers are sealed off from one another by a membrane 16 .
  • the outer circumferential bead of the membrane serves as a form-fitting sealing element.
  • both chambers are connected to one another via a screw connection (30).
  • An electrically conductive, centrally perforated disk 15 is attached to the membrane 16 on one side by a snap connection.
  • the membrane with the disc attached is positioned towards chamber B19.
  • the chamber B 19 made of non-electrically conductive material, preferably plastic, accommodates two contact elements 10 that are insulated from one another. These contact elements 10 are inserted inside through slots in the chamber B 19 and positioned by electrically conductive fasteners 10a and suitably fixed, in this example by deforming the fasteners.
  • the device according to the invention shown shows the open position, ie the membrane is located at the lower stop 21 because there is no burner pressure.
  • the circuit 20 is open, and there is no status display.
  • the pressure is released through the opening 18 into the interior of the device 1 according to the invention transferred to the lower side of the membrane 16.
  • the advantage here is that the size of the opening 18 is dimensioned in such a way that, if the membrane 16 is destroyed in the event of an accident, no ignitable, impermissibly high quantity of gas can escape. Furthermore, this design enables the chamber B 19 to be manufactured from plastic at low cost. Under the applied pressure, the membrane 16 moves up to the upper stop, which is formed by both electrically conductive attachments 10a. The end position of the membrane 16 under applied pressure is in Fig.3 shown.
  • both attachments 10a are electrically connected by the disk 15, the circuit 20 is closed and the status is displayed via the connected LED 12.
  • the status is displayed continuously as long as pressure is applied to the gas burner 2.
  • the status display goes out, LED 12 off, when the valve of the gas control unit 4, which is controlled by the liquid-filled temperature sensor 28, closes.
  • the 1 illustrated second device 1a in detail as a section in figure 5 shown, has a structurally modified chamber A 17b.
  • this chamber A For installation in a supply line, in this example the supply line 13 to the pilot burner 3, this chamber A has two connection points as an input 22 and an output 23, here preferably designed as a metal-sealing double cone ring screw connection.
  • the structure and the mode of operation of the status display also correspond to device 1 according to the invention in this example.
  • the status is displayed here via a second LED 12a depending on the pressure at the pilot gas burner 3.
  • an ignition safety valve (not shown) is opened, pilot gas is released to the pilot burner and ignited. Since the device 1a is installed directly in the supply line 13, the pressure on the pilot burner causes the membrane 16 to lift.
  • the circuit 20 is closed via the attachments 10a and contact elements 10 in the same way as in the previous example. If the gas control device is switched off, the ignition gas pressure drops to zero. the Diaphragm 16 moves back to the lower stop 21, the circuit 20 is opened and the status display, LED 12a, goes out.
  • a fitting can be attached via a modified chamber A 17c, which allows direct installation in the supply line to the gas burner.
  • the inlet 22 and outlet 23 in the thread are sealed screw connections.
  • An extended area of application can be opened up if a relay is connected instead of the previously described circuit for status display.
  • Components such as a blower can be switched on and off via this relay depending on the prevailing pressure at the burner.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Measuring Fluid Pressure (AREA)

Description

Technisches Gebiettechnical field

Die Erfindung betrifft eine Einrichtung zur Statusanzeige eines Gasbrenners beim Betrieb mit einem Gasregelgerät mit flüssigkeitsgefülltem Temperaturfühler.The invention relates to a device for displaying the status of a gas burner during operation with a gas control device with a liquid-filled temperature sensor.

Stand der TechnikState of the art

Bei gasbetriebener Küchentechnik wird gewünscht den Betriebsstatus anzuzeigen. Es soll durch den Bediener erkannt werden, ob die voreingestellte Betriebstemperatur erreicht ist, das heißt ob z.B. die Fritteuse neu beladen werden kann. Bei Elektrogeräten ist es heute Standard mit einer LED anzuzeigen, dass die voreingestellte Betriebstemperatur erreicht ist und das Heizelement ausschaltet. Bei Gasgeräten gibt es diese Anzeige bisher nur bei Geräten, die mit einer elektronischen Temperaturregelung arbeiten. Gasgeräte mit elektronischer Temperaturregelung haben neben höheren Kosten den entscheidenden Nachteil, dass sie bei Stromausfall nicht benutzt werden können. Für kostengünstigere und stromunabhängige Gasgeräte werden Gasregelgeräte mit flüssigkeitsgefülltem Temperaturfühler verwendet.In the case of gas-powered kitchen technology, it is desired to display the operating status. The operator should be able to see whether the preset operating temperature has been reached, i.e. whether the fryer can be reloaded, for example. With electrical devices, it is now standard with an LED to indicate that the preset operating temperature has been reached and the heating element switches off. In the case of gas appliances, this display has so far only been available in appliances that work with electronic temperature control. In addition to the higher costs, gas appliances with electronic temperature control have the decisive disadvantage that they cannot be used in the event of a power failure. Gas regulators with a liquid-filled temperature sensor are used for less expensive and electricity-independent gas appliances.

Im Gegensatz zu den Gasregelgeräten mit elektronischer Temperaturregelung ist es bei Gasregelgeräten mit flüssigkeitsgefülltem Temperaturfühler nicht ohne weiteres möglich, die IST-Temperatur mit dem eingestellten Sollwert zu vergleichen. Es besteht die Möglichkeit, die Flamme des Gasbrenners mittels Temperaturmessung als Signal für das An- und Ausschalten zu nutzen. Der Nachteil besteht darin, dass eine Elektronik zur Auswertung des Signals erforderlich ist. Probleme bereitet auch die Anordnung des Sensors, insbesondere durch die Vielfalt der Gasbrennerausführungen und Anordnungen.In contrast to the gas control devices with electronic temperature control, it is not possible to compare the ACTUAL temperature with the set target value in the case of gas control devices with a liquid-filled temperature sensor. It is possible to use the flame of the gas burner as a signal for switching on and off by measuring the temperature. The disadvantage is that electronics are required to evaluate the signal. The arrangement of the sensor also causes problems, in particular due to the variety of gas burner designs and arrangements.

DE 10 2009 011 611 A1 offenbart ein Gasregelgerät mit flüssigkeitsgefülltem Temperaturfühler, wobei hier die Aufgabenstellung besteht eine Gasregelarmatur zu schaffen, die Verfälschungen des zu regelnden Temperaturwertes, hervorgerufen durch Schwankungen der Umgebungstemperatur, zu minimieren. Eine Einrichtung zur Statusanzeige des Betriebszustandes wird nicht vorgeschlagen. DE 10 2009 011 611 A1 discloses a gas control device with a liquid-filled temperature sensor, the task here being to create a gas control fitting that minimizes the falsifications of the temperature value to be controlled, caused by fluctuations in the ambient temperature. A device for status display of the operating condition is not suggested.

Aus DE 10 2006 034 868 A1 ist ein Drucksensor bekannt, der bei erhöhtem äußerem Druck über einen durch eine Membran erzeugten Hub auf eine Schnappscheibe wirkt, dabei zwei elektrische Kontakte verbindet und einen Stromkreis schließt.Out DE 10 2006 034 868 A1 a pressure sensor is known which acts on a snap-action disk at elevated external pressure via a stroke generated by a membrane, thereby connecting two electrical contacts and closing a circuit.

Dieser Drucksensor als Druckschalter ist weder für Gasanwendungen noch als Anzeige des Betriebsstatus eines Gasbrenners konzipiert.This pressure sensor as a pressure switch is not designed for gas applications nor as an indicator of the operating status of a gas burner.

US 2014/096850 A1 beschreibt die Statusanzeige der Position eines Gasbrennerventils, wobei die Positionierung des Gasbrennerventils von außen durch einen Sensor berührungslos erfasst wird. Die durch die angeschlossene Elektronik ermittelte Position des Gasbrennerventils wird über eine Anzeige ausgegeben. US2014/096850A1 describes the status display of the position of a gas burner valve, with the positioning of the gas burner valve being detected externally by a non-contact sensor. The position of the gas burner valve determined by the connected electronics is shown on a display.

Diese Lösung arbeitet nicht mit einer im Gas Weg befindlichen Membran, die über deren Hub den Gasdruck des Brenners wiedergibt und in direkter Verbindung mit einem Stromkreis steht.This solution does not work with a membrane located in the gas path, which reflects the gas pressure of the burner via its stroke and is in direct connection with an electric circuit.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt das Problem zugrunde eine in Aufbau und Herstellung einfache Lösung für eine Einrichtung zur Statusanzeige des Gasbrenners bei Nutzung eines Gasregelgerätes mit flüssigkeitsgefülltem Temperaturregler zu schaffen, die unabhängig von den Gegebenheiten der konkreten Gasbrennerausführung und Anordnung funktioniert. Die Anwendbarkeit der Einrichtung zur Statusanzeige soll nicht nur auf die Statusanzeige des Gasbrenners beschränkt bleiben, sondern auch für andere Anzeigen z.B. Zündgas geeignet sein. Die Nachrüstung vorhandener Installationen soll mit dieser Einrichtung möglich sein.The invention is based on the problem of providing a simple design and manufacture solution for a device for indicating the status of the gas burner when using a gas control device with a liquid-filled temperature controller, which works independently of the specific gas burner design and arrangement. The applicability of the device for status display should not only remain limited to the status display of the gas burner, but also for other displays, such as ignition gas be suitable. Retrofitting existing installations should be possible with this device.

Erfindungsgemäß wird das Problem dadurch gelöst, dass die an einem Ausgang des Gasregelgerätes zum Gasbrenner verbundene Einrichtung aus einem Gehäuse besteht, die mindestens zwei miteinander verbundene Kammern aufweist, die durch eine einseitig mit einem elektrisch leitenden Bauteil verbundenen Membran gasdicht getrennt sind, wobei die Kammer A mit dem Gasausgang des Gasregelgerätes verbunden ist, die Membran durch eine Öffnung in der Kammer A bei geöffnetem Gasventil mit dem Gasdruck des Gasbrenners beaufschlagt einen Hub erzeugt, die Kammer B, in der die Seite der Membran mit dem verbundenen elektrisch leitenden Bauteil positioniert ist, durch den Hub über nach außen geführte Kontaktelemente einen Stromkreis schließt und den Betriebsstatus in geeigneter Weise anzeigt.According to the invention, the problem is solved in that the device connected to an outlet of the gas control device to the gas burner consists of a housing which has at least two interconnected chambers, which are separated in a gas-tight manner by a membrane connected on one side to an electrically conductive component, with chamber A is connected to the gas outlet of the gas regulator, the membrane generates a lift through an opening in chamber A when the gas valve is open with the gas pressure of the gas burner, chamber B, in which the side of the membrane with the connected electrically conductive component is positioned, through the hub closes an electric circuit via contact elements led to the outside and displays the operating status in a suitable manner.

Bei geschlossenem Gasventil geht der Hub der Membran mit der ihr eigenen Federsteifigkeit in die Ausgangslage zurück. Der Stromkreis öffnet und es wird kein Betriebsstatus mehr anzeigt.When the gas valve is closed, the membrane travels back to its original position with its inherent spring stiffness. The circuit opens and the operating status is no longer displayed.

Damit wurde eine Lösung gefunden, mit der die weiter oben genannten Nachteile des Standes der Technik beseitigt werden.A solution was thus found with which the above-mentioned disadvantages of the prior art are eliminated.

Vorteilhafte Ausgestaltungen der Erfindung gehen aus den Unteransprüchen hervor.Advantageous configurations of the invention emerge from the dependent claims.

So erweist es sich als günstige Ausgestaltung der Einrichtung, dass die Kammer A des Gehäuses abweichend mit zwei Verbindungsstellen ausgeführt ist, um angeschlossen an den Zündgasausgang in der Zuführungsleitung zwischen Gasregelgerät und Zündgasbrenner als Statusanzeige des Zündgases zu dienen. Eine weitere günstige Ausgestaltung der Einrichtung ist, wenn die Kammer A des Gehäuses, die mit zwei Verbindungsstellen ausgeführt ist, als Fitting in der Zuführungsleitung zwischen Gasregelgerät und Gasbrenner angeordnet ist.It has proven to be a favorable configuration of the device that chamber A of the housing is designed with two connection points in order to serve as a status indicator for the ignition gas when connected to the ignition gas outlet in the supply line between the gas control device and the ignition gas burner. Another favorable configuration of the device is when chamber A of the housing, which is designed with two connection points, is arranged as a fitting in the supply line between the gas control device and the gas burner.

Eine andere mögliche Ausgestaltung besteht darin, wenn statt Anschluss einer Statusanzeige ein Relais an der Kontaktierung angeschlossen wird, das wiederum externe Komponenten abhängig schalten kann.Another possible configuration is when, instead of connecting a status display, a relay is connected to the contact, which in turn can switch external components dependently.

Aufgrund das die Membran eine Federsteifigkeit aufweist, die bei ausreichendem Hub den Einsatz einer separaten Rückstellfeder zum Öffnen des Stromkreises beim Schließen des Gasventils des Gasregelgerätes erübrigt, führt zu einer weiteren günstigen Ausgestaltung.Due to the fact that the membrane has a spring stiffness which, given a sufficient stroke, makes it unnecessary to use a separate restoring spring to open the circuit when the gas valve of the gas control device is closed, this leads to a further advantageous embodiment.

Der einfache Aufbau und die Funktionsweise der Einrichtung bedingen, dass eine an die Einbausituation angepasste Druckeinstellung der Einrichtung nicht notwendig ist.The simple structure and mode of operation of the device mean that it is not necessary to adjust the pressure of the device to suit the installation situation.

Ausführungsbeispieleexemplary embodiments

Beispielhafte Ausgestaltungen der erfindungsgemäßen Einrichtung werden nachstehend an Ausführungsbeispielen näher beschrieben. Es zeigen:

Fig. 1
eine erfindungsgemäße Einrichtung angebaut am Gasregelgerät als Statusanzeigen für Gasbrenner und Zündgasbrenner,
Fig. 2
eine erfindungsgemäße Einrichtung in geschnittener Darstellung in Offenstellung,
Fig. 3
eine erfindungsgemäße Einrichtung in geschnittener Darstellung in Geschlossenstellung,
Fig. 4
eine erfindungsgemäße Einrichtung in geschnittener Darstellung mit Kammer A zum direkten Verbinden mit dem Gasregelgerät mittels Gewinde und Dichtelement,
Fig. 5
eine erfindungsgemäße Einrichtung in geschnittener Darstellung mit Kammer A zum gasdichten Einbau in eine Zuführungsleitung zum Brenner,
Fig. 6
eine erfindungsgemäße Einrichtung in geschnittener Darstellung mit Verbindung zu einem Adapter zum gasdichten Einbau als Fitting in eine Zuführungsleitung zum Brenner ohne Dichtelemente.
Exemplary configurations of the device according to the invention are described in more detail below using exemplary embodiments. Show it:
1
a device according to the invention mounted on the gas control device as status displays for gas burners and ignition gas burners,
2
a device according to the invention in a sectional view in the open position,
3
a device according to the invention in a sectional view in the closed position,
4
a device according to the invention in a sectional view with chamber A for direct connection to the gas control device by means of a thread and sealing element,
figure 5
a device according to the invention in a sectional view with chamber A for gas-tight installation in a supply line to the burner,
6
a device according to the invention in a sectional representation with connection to an adapter for gas-tight installation as a fitting in a supply line to the burner without sealing elements.

In der Figur 1 ist ein beispielhafter Aufbau unter Einbeziehung der erfindungsgemäßen Einrichtungen 1 und 1a zur Statusanzeige eines Gasbrenners 2 und eines Zündgasbrenners 3 in Verbindung mit einem Gasregelgerät 4 mit flüssigkeitsgefülltem Temperaturregler dargestellt, das vorzugsweise für ein gasbetriebenes Heizgerät oder dergleichen bestimmt ist. Das Gasregelgerät 4 ermöglicht die Bedienung und Überwachung eines Gasbrenners 2 sowie die Einstellung und Regelung der gewünschten Temperatur, indem die zum Gasbrenner strömende Gasmenge gesteuert wird.In the figure 1 is an exemplary structure including the devices 1 and 1a according to the invention for status display of a gas burner 2 and a pilot gas burner 3 in connection with a gas control device 4 with a liquid-filled temperature controller, which is preferably intended for a gas-operated heating device or the like. The gas control device 4 enables the operation and monitoring of a gas burner 2 as well as the setting and regulation of the desired temperature by controlling the amount of gas flowing to the gas burner.

Das Gasregelgerät 4 besteht in diesem Beispiel aus einem Gehäuse 5, das mit Richtungspfeilen gekennzeichnete Gaseingänge 6 und 6a sowie mit Richtungspfeilen gekennzeichnete Gasausgänge 7 und 7a und einen Zündgasausgang 8 aufweist. Im Gehäuse 5 sind in Strömungsrichtung des Gases gesehen, nachfolgende Funktionseinheiten untergebracht:

  • Inbetriebnahme mit Zündsicherungsventil (nicht dargestellt)
  • Steuerungseinheit mit flüssigkeitsgefülltem Temperaturregler für die zum Hauptbrenner strömende Gasmenge (nicht dargestellt)
In this example, the gas control device 4 consists of a housing 5 which has gas inlets 6 and 6a marked with directional arrows and gas outlets 7 and 7a marked with directional arrows and an ignition gas outlet 8 . In the housing 5, seen in the flow direction of the gas, the following functional units are housed:
  • Commissioning with ignition safety valve (not shown)
  • Control unit with liquid-filled temperature regulator for the amount of gas flowing to the main burner (not shown)

Aufbau und Wirkungsweise der Gasregelarmatur sind dem Fachmann bekannt. Auf eine nähere Darstellung und Erläuterung der Einzelheiten wird deshalb in diesem Ausführungsbeispiel verzichtet.The structure and mode of operation of the gas control fitting are known to those skilled in the art. A more detailed representation and explanation of the details is therefore omitted in this exemplary embodiment.

Wie in Fig. 1 dargestellt, ist die erfindungsgemäße Einrichtung 1 an einem der beiden Ausgänge 7a des Gasregelgerätes 4 gasdicht montiert. Am zweiten Gasausgang 7 ist die Zuführungsleitung 9 zum Gasbrenner 2 angeschlossen. Der jeweils nicht an das Gasnetz angeschlossene Gaseingang 6 oder 6a ist mit einem nicht dargestellten Verschlusselement, vorzugweise Gewindestopfen, abgedichtet. Die elektrischen Kontaktelemente 10 der Einrichtung 1 sind mit der Spannungsquelle 11 und der LED 12 elektrisch verbunden. Eine zweite, modifizierte erfindungsgemäße Einrichtung 1a, dargestellt in Fig. 5, ist in der Zündgaszuführungsleitung 13 eingebaut. Deren elektrische Kontaktelemente 10 sind mit der Spannungsquelle 11und der LED 12a elektrisch verbunden.As in 1 shown, the device 1 according to the invention is mounted in a gas-tight manner on one of the two outputs 7a of the gas control device 4 . The supply line 9 to the gas burner 2 is connected to the second gas outlet 7 . the Each gas inlet 6 or 6a that is not connected to the gas network is sealed with a closure element (not shown), preferably a threaded plug. The electrical contact elements 10 of the device 1 are electrically connected to the voltage source 11 and the LED 12 . A second, modified device 1a according to the invention, shown in figure 5 , is installed in the ignition gas supply line 13. Their electrical contact elements 10 are electrically connected to the voltage source 11 and the LED 12a.

Wie in Fig. 2 dargestellt, besteht die erfindungsgemäße Einrichtung 1 aus einem Gehäuse 14 mit zwei miteinander verbundenen Kammern, der Kammer A 17 und der Kammer B 19. Die Kammer A 17 aus sicherheitstechnischen Gründen aus metallischem Werkstoff, ist mit dem Gasausgang 7a des Gasregelgerätes 4 verbunden, in diesem Ausführungsbeispiel durch eine im Gewinde dichtende Verschraubung 25. Als Alternative Verbindung zur Gasregeleinrichtung kann mittels modifizierter Kammer A 17a eine Verschraubung mit zylindrischem Gewinde 27 und einem Dichtelement 26, wie in Fig. 4 dargestellt, dienen. Beide Kammern sind durch eine Membran 16 voneinander abgedichtet. Die äußere umlaufende Wulst der Membran dient hierbei als formschlüssiges Dichtelement. Beide Kammern sind in diesem Ausführungsbeispiel über eine Verschraubung (30) miteinander verbunden. An die Membran 16 ist einseitig eine elektrisch leitende, zentrisch gelochte Scheibe 15 durch eine Schnappverbindung angebaut. Die Membran mit der angebauten Scheibe ist in Richtung der Kammer B 19 positioniert. Die Kammer B 19 aus nicht elektrisch leitendem Material, vorzugsweise Kunststoff bestehend, nimmt zwei voneinander isolierte Kontaktelemente 10 auf. Diese Kontaktelemente 10 sind durch Schlitze in der Kammer B 19 in das Innere eingefügt und durch elektrisch leitende Befestigungen 10a positioniert und in geeigneter Weise fest verbunden, in diesem Beispiel durch Umformen der Befestigungen. Die in Fig. 2 dargestellte erfindungsgemäße Einrichtung zeigt die Offenstellung, das heißt die Membran befindet sich, weil kein Brennerdruck anliegt, am unteren Anschlag 21. Der Stromkreis 20 ist offen, es erfolgt keine Statusanzeige. Liegt durch Öffnen des Hauptventils im Gasregelgerät Druck am Gasbrenner 2 an, wird der Druck durch die Öffnung 18 in das Innere der erfindungsgemäßen Einrichtung 1 auf die untere Seite der Membran 16 übertragen. Von Vorteil ist dabei, dass die Größe der Öffnung 18 so bemessen ist, dass bei Zerstörung der Membran 16 im Havariefall keine zündfähige, unzulässig hohe Gasmenge austreten kann. Weiterhin ermöglicht diese Auslegung, dass die Kammer B 19 kostengünstig aus Kunststoff gefertigt werden kann. Unter dem anliegenden Druck bewegt sich die Membran 16 bis zum oberen Anschlag, der durch beide elektrisch leitenden Befestigungen 10a gebildet wird. Die Endlage der Membran 16 unter anliegendem Druck wird in Fig.3 dargestellt. Mit dem Erreichen der Endlage der Membran 16 werden durch die Scheibe 15 beide Befestigungen 10a elektrisch verbunden, der Stromkreis 20 ist geschlossen und die Statusanzeige erfolgt über die angeschlossene LED 12. Der Status wird dauerhaft angezeigt, solange Druck am Gasbrenner 2 anliegt. Die Statusanzeige verlischt, LED 12 aus, wenn das durch den flüssigkeitsgefüllten Temperaturfühler 28 gesteuerte Ventil des Gasregelgerätes 4 schließt.As in 2 shown, the device 1 according to the invention consists of a housing 14 with two interconnected chambers, the chamber A 17 and the chamber B 19. The chamber A 17 for safety reasons made of metallic material is connected to the gas outlet 7a of the gas control device 4, in this Embodiment by a screw connection 25 that seals the thread. As an alternative connection to the gas control device, a screw connection with a cylindrical thread 27 and a sealing element 26, as in 4 shown, serve. Both chambers are sealed off from one another by a membrane 16 . The outer circumferential bead of the membrane serves as a form-fitting sealing element. In this exemplary embodiment, both chambers are connected to one another via a screw connection (30). An electrically conductive, centrally perforated disk 15 is attached to the membrane 16 on one side by a snap connection. The membrane with the disc attached is positioned towards chamber B19. The chamber B 19 made of non-electrically conductive material, preferably plastic, accommodates two contact elements 10 that are insulated from one another. These contact elements 10 are inserted inside through slots in the chamber B 19 and positioned by electrically conductive fasteners 10a and suitably fixed, in this example by deforming the fasteners. In the 2 The device according to the invention shown shows the open position, ie the membrane is located at the lower stop 21 because there is no burner pressure. The circuit 20 is open, and there is no status display. If there is pressure on the gas burner 2 by opening the main valve in the gas control device, the pressure is released through the opening 18 into the interior of the device 1 according to the invention transferred to the lower side of the membrane 16. The advantage here is that the size of the opening 18 is dimensioned in such a way that, if the membrane 16 is destroyed in the event of an accident, no ignitable, impermissibly high quantity of gas can escape. Furthermore, this design enables the chamber B 19 to be manufactured from plastic at low cost. Under the applied pressure, the membrane 16 moves up to the upper stop, which is formed by both electrically conductive attachments 10a. The end position of the membrane 16 under applied pressure is in Fig.3 shown. When the end position of the membrane 16 is reached, both attachments 10a are electrically connected by the disk 15, the circuit 20 is closed and the status is displayed via the connected LED 12. The status is displayed continuously as long as pressure is applied to the gas burner 2. The status display goes out, LED 12 off, when the valve of the gas control unit 4, which is controlled by the liquid-filled temperature sensor 28, closes.

Die in Fig. 1 dargestellte zweite, erfindungsgemäße Einrichtung 1a, im Detail als Schnitt in Fig. 5 dargestellt, weist eine baulich modifizierte Kammer A 17b auf. Diese Kammer A weist zum Einbau in eine Zuführungsleitung, in diesem Beispiel die Zuführungsleitung 13 zum Zündbrenner 3, zwei Verbindungstellen als Eingang 22 und Ausgang 23 auf, hier vorzugsweise ausgelegt als metallisch dichtende Doppelkegelringverschraubung. Der Aufbau und die Funktionsweise der Statusanzeige entspricht auch bei diesem Beispiel der erfindungsgemäßen Einrichtung 1.In the 1 illustrated second device 1a according to the invention, in detail as a section in figure 5 shown, has a structurally modified chamber A 17b. For installation in a supply line, in this example the supply line 13 to the pilot burner 3, this chamber A has two connection points as an input 22 and an output 23, here preferably designed as a metal-sealing double cone ring screw connection. The structure and the mode of operation of the status display also correspond to device 1 according to the invention in this example.

Im Unterschied dazu erfolgt hier die Statusanzeige über eine zweite LED 12a in Abhängigkeit des Drucks am Zündgasbrenner 3. Mit Betätigung der Inbetriebnahme 24 des Gasregelgerätes 4 wird ein nicht dargestelltes Zündsicherungsventil geöffnet, Zündgas zum Zündbrenner freigegeben und gezündet. Da die Einrichtung 1a direkt in die Zuführungsleitung 13 eingebaut ist führt hier der Druck am Zündbrenner zur Hubbewegung der Membran 16. Das Schließen des Stromkreises 20 über die Befestigungen 10a und Kontaktelemente10 erfolgt in gleicher Weise wie im vorangegangenen Beispiel. Wird das Gasregelgerät außer Betrieb gesetzt geht der Zündgasdruck auf null. Die Membran 16 bewegt sich bis zum unteren Anschlag 21 zurück, der Stromkreis 20 wird geöffnet und die Statusanzeige, LED 12a, verlischt.In contrast to this, the status is displayed here via a second LED 12a depending on the pressure at the pilot gas burner 3. By actuating the start-up 24 of the gas control device 4, an ignition safety valve (not shown) is opened, pilot gas is released to the pilot burner and ignited. Since the device 1a is installed directly in the supply line 13, the pressure on the pilot burner causes the membrane 16 to lift. The circuit 20 is closed via the attachments 10a and contact elements 10 in the same way as in the previous example. If the gas control device is switched off, the ignition gas pressure drops to zero. the Diaphragm 16 moves back to the lower stop 21, the circuit 20 is opened and the status display, LED 12a, goes out.

Steht für die erfindungsgemäße Einrichtung 1 kein direkter Anschluss an einen Gasausgang der Gasregeleinrichtung 4 zur Verfügung kann wie in Fig. 6 gezeigt über eine modifizierte Kammer A 17c ein Fitting angebaut werden, der den direkten Einbau in die Zuführungsleitung zum Gasbrenner erlaubt. In diesem Beispiel werden als Eingang 22 und Ausgang 23 im Gewinde dichtende Verschraubungen verwendet. Mit dieser Ausführung kann die erfindungsgemäße Einrichtung 1 universell als Statusanzeige für einen Gasbrenner genutzt werden und / oder nachträglich in vorhandene Gasgeräte eingebaut werden.If no direct connection to a gas outlet of the gas control device 4 is available for the device 1 according to the invention, as in 6 shown, a fitting can be attached via a modified chamber A 17c, which allows direct installation in the supply line to the gas burner. In this example, the inlet 22 and outlet 23 in the thread are sealed screw connections. With this design, the device 1 according to the invention can be used universally as a status display for a gas burner and/or can be retrofitted into existing gas appliances.

Die erfindungsgemäße Einrichtung ist selbstredend nicht auf die dargestellten Ausführungsbeispiele beschränkt. Vielmehr sind Änderungen, Abwandlungen und Kombinationen möglich, ohne den Rahmen der Erfindung zu verlassen.The device according to the invention is of course not limited to the exemplary embodiments shown. Rather, changes, modifications and combinations are possible without departing from the scope of the invention.

So lässt sich ein erweiterter Anwendungsbereich erschließen, wenn anstelle des vorher beschriebenen Stromkreises zur Statusanzeige ein Relais angeschlossen wird. Über dieses Relais können in Abhängigkeit vom herrschenden Druck am Brenner Komponenten, wie zum Beispiel ein Gebläse, ein- und ausgeschaltet werden.An extended area of application can be opened up if a relay is connected instead of the previously described circuit for status display. Components such as a blower can be switched on and off via this relay depending on the prevailing pressure at the burner.

Aufstellung der BezugszeichenList of reference numbers

11
erfindungsgemäße Einrichtungdevice according to the invention
1a1a
Einrichtung mit modifizierter Kammer AFacility with modified Chamber A
22
Gasbrennergas burner
33
Zündgasbrennerpilot gas burner
44
Gasregelgerätgas control device
55
Gehäuse (Gasregelgerät)housing (gas control device)
66
Gaseingang (Boden)gas inlet (bottom)
6a6a
Gaseingang (Seite)gas inlet (side)
77
Gasausgang (Seite)gas outlet (side)
7a7a
Gasausgang (Boden)gas outlet (bottom)
88th
Zündgasausgangignition gas outlet
99
Zuführungsleitung (Gasbrenner)supply line (gas burner)
1010
Kontaktelementecontact elements
10a10a
oberer Anschlag (Befestigungen)upper stop (fixtures)
1111
Spannungsquellevoltage source
1212
LED (Betriebsstatus Gasbrenner)LED (gas burner operating status)
12a12a
LED (Betriebsstatus Zündgasbrenner)LED (operating status pilot gas burner)
1313
Zuführungsleitung (Zündgas)supply line (ignition gas)
1414
Gehäuse (Einrichtung)housing
1515
Scheibedisc
1616
Membranmembrane
1717
Kammer A (Fig.2 Fig. 3)Chamber A ( Fig.2 3 )
17a17a
Kammer A (Fig.4)Chamber A ( Fig.4 )
17b17b
Kammer A (Fig.5)Chamber A ( Fig.5 )
17c17c
Kammer A (Fig.6)Chamber A ( Fig.6 )
1818
Öffnungopening
1919
Kammer BChamber B
2020
Stromkreiscircuit
2121
unterer Anschlaglower stop
2222
Einganginput
2323
Ausgangexit
2424
InbetriebnahmeInstallation
2525
Gewinde, konischthread, conical
2626
Dichtelementsealing element
2727
Gewinde, zylindrischthread, cylindrical
2828
Temperaturfühlertemperature sensor
2929
Fittingfitting
3030
Verschraubungscrew connection

Claims (6)

  1. Device for indicating the status of a gas burner when operated with a gas control apparatus with liquid-filled temperature controller characterised in that the device (1) connected to an outlet (7a) of the gas control apparatus (4) for the gas burner (2) consists of a housing (14) which has at least two interconnected chambers, which are separated gas-tight by a membrane (16) connected on one side to an electrically conductive component (15), wherein the chamber A (17) is connected to the gas outlet (7a) of the gas control apparatus (4), the membrane (16) to which the gas pressure of the gas burner (2) is applied through an opening (18) in the chamber A (17) when the gas valve is open, produces a stroke, by means of which the chamber B (19) in which the side of the membrane (16) having the connected electrically conductive component (15) is positioned, closes a circuit (20) via contact elements (10) led outwards and suitably (12) indicates the operating status, whereas when the gas valve is closed, the stroke of the membrane (16) goes back to the starting position (21) at its own spring constant, the circuit (20) is opened and no operating status is indicated.
  2. Device according to claim 1, characterised in that the chamber A (17) of the housing (14) is designed differently with two connection points (22, 23) to serve as a status indicator of the pilot gas on connection to the pilot gas outlet (8) in the supply line (13) between gas control apparatus (4) and pilot gas burner (3).
  3. Device according to claim 2, characterised in that the device is arranged as a fitting (29) in the supply line (9) between gas control apparatus (4) and gas burner (2).
  4. Device according to claim 1, characterised in that, instead of the circuit (20) described above, external components are switched by connecting a relay to the contact elements (10).
  5. Device according to claim 1, characterised in that the membrane (16) has a spring constant that with sufficient stroke eliminates the use of a separate restoring spring to open the circuit (20) when the gas valve of the gas control apparatus (4) is shut.
  6. Device according to claim 1, characterised in that a pressure setting is not necessary.
EP19708392.6A 2018-02-27 2019-02-13 Device for indicating the status of a gas burner Active EP3759391B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL19708392T PL3759391T3 (en) 2018-02-27 2019-02-13 Device for indicating the status of a gas burner
SI201930215T SI3759391T1 (en) 2018-02-27 2019-02-13 Device for indicating the status of a gas burner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018001539.5A DE102018001539B4 (en) 2018-02-27 2018-02-27 Device for displaying the status of a gas burner
PCT/EP2019/000039 WO2019166124A1 (en) 2018-02-27 2019-02-13 Device for indicating the status of a gas burner

Publications (2)

Publication Number Publication Date
EP3759391A1 EP3759391A1 (en) 2021-01-06
EP3759391B1 true EP3759391B1 (en) 2022-01-12

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Application Number Title Priority Date Filing Date
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Country Status (13)

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US (1) US11867396B2 (en)
EP (1) EP3759391B1 (en)
CN (1) CN111771083A (en)
AU (1) AU2019228202B2 (en)
CA (1) CA3091702A1 (en)
DE (1) DE102018001539B4 (en)
ES (1) ES2909801T3 (en)
HU (1) HUE058216T2 (en)
PL (1) PL3759391T3 (en)
RU (1) RU2020130981A (en)
SI (1) SI3759391T1 (en)
UA (1) UA125986C2 (en)
WO (1) WO2019166124A1 (en)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3544411A1 (en) * 1985-12-16 1987-06-19 Honeywell Bv HOT WATER HEATING SYSTEM WITH HEAT CONSUMER
US5367878A (en) * 1991-11-08 1994-11-29 University Of Southern California Transient energy release microdevices and methods
CN2272084Y (en) * 1996-06-02 1998-01-07 顾国荣 Gas solenoid valve with displacement sensor
DE29905204U1 (en) * 1999-03-22 1999-06-10 Mertik Maxitrol GmbH & Co. KG, 06502 Thale Gas control valve
DE102006034868A1 (en) * 2005-07-28 2007-02-01 Marquardt Gmbh Pressure sensor switch has a diaphragm that operates against a snap action disc that serves as a movable contact
CN201134393Y (en) * 2007-12-03 2008-10-15 四川航天计量测试研究所 Pressure switch
DE102009011611B4 (en) * 2009-03-04 2014-02-27 Mertik Maxitrol Gmbh & Co. Kg Gas regulating valve
US20140096850A1 (en) * 2011-12-15 2014-04-10 Honeywell International Inc. Visual indicator for a safety shut off valve
US8899264B2 (en) * 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
CN106384693B (en) * 2016-08-16 2018-07-13 杭州富阳中荷电子有限公司 High-voltage switch gear

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RU2020130981A (en) 2022-03-29
CA3091702A1 (en) 2019-09-06
ES2909801T3 (en) 2022-05-10
WO2019166124A1 (en) 2019-09-06
AU2019228202B2 (en) 2024-03-14
AU2019228202A1 (en) 2020-09-03
US20200400311A1 (en) 2020-12-24
UA125986C2 (en) 2022-07-20
SI3759391T1 (en) 2022-05-31
EP3759391A1 (en) 2021-01-06
DE102018001539B4 (en) 2020-03-05
PL3759391T3 (en) 2022-05-16
CN111771083A (en) 2020-10-13
HUE058216T2 (en) 2022-07-28
DE102018001539A1 (en) 2019-09-26
US11867396B2 (en) 2024-01-09

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