EP2123979A2 - Gas regulator - Google Patents

Gas regulator Download PDF

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Publication number
EP2123979A2
EP2123979A2 EP09005857A EP09005857A EP2123979A2 EP 2123979 A2 EP2123979 A2 EP 2123979A2 EP 09005857 A EP09005857 A EP 09005857A EP 09005857 A EP09005857 A EP 09005857A EP 2123979 A2 EP2123979 A2 EP 2123979A2
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EP
European Patent Office
Prior art keywords
gas
valve
drive chamber
servo
control device
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.)
Granted
Application number
EP09005857A
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German (de)
French (fr)
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EP2123979A3 (en
EP2123979B1 (en
Inventor
Frank Van Prooijen
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Garrett Motion SARL
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Honeywell Technologies SARL
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Publication of EP2123979A2 publication Critical patent/EP2123979A2/en
Publication of EP2123979A3 publication Critical patent/EP2123979A3/en
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Publication of EP2123979B1 publication Critical patent/EP2123979B1/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
    • F23N1/005—Regulating fuel supply using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • F23N5/245—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2900/00—Special features of, or arrangements for fuel supplies
    • F23K2900/05001—Control or safety devices in gaseous or liquid fuel supply lines
    • 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
    • F23N2235/16—Fuel valves variable flow or proportional 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
    • F23N2235/20—Membrane valves

Definitions

  • the invention relates to a gas control device.
  • a gas burner gas control device which comprises a safety valve, a main gas valve and two pressure regulators.
  • DE 198 21 853 C1 is an output control pressure of a first pressure regulator by a linear actuator adjustable
  • a second pressure regulator limits the maximum allowable pressure of a gas burner to be supplied gas flow to the pressure of the burner air flow supplied.
  • the output control pressure of the first pressure regulator for changing the gas flow while maintaining the air flow is adjustable.
  • the invention is based on the object to provide a novel gas control device.
  • This object is achieved by a gas control device having the features of claim 1.
  • the gas control device according to the invention comprises a safety valve, a main gas valve and a pressure regulator, wherein the safety valve is designed as a diaphragm valve with a gas inlet chamber and a drive chamber which due to the spring force of a spring element and a prevailing in the drive chamber servo pressure against a prevailing in the gas inlet chamber inlet pressure wears or opens, wherein the main gas valve is designed as a diaphragm valve with a drive chamber and a gas outlet chamber which due to the spring force of a spring element and a prevailing in the gas outlet chamber outlet pressure against a prevailing in the drive chamber servo pressure or opens, and wherein the drive chamber of the safety valve and the drive chamber of the main gas valve with interposition at least one servo valve which is opened to release a gas flow through the safety valve and the main gas valve and closed to block a gas
  • both the safety valve and the main gas valve are each designed as a diaphragm valve.
  • the drive chambers of these two diaphragm valves are coupled together with the interposition of at least one servo valve. Then, when a gas flow through the gas control device or through the safety valve and the main gas valve is to be released, all connected between the drive chambers of safety valve and main gas valve servo valves are opened.
  • By opening the servo valves is achieved that a pressure equalization between the two drive chambers takes place, in which case the drive chamber of the main gas valve is filled via the drive chamber of the safety valve. In this way, a relatively fast opening of the gas control device can be realized despite the use of diaphragm valves. Accordingly, with the gas control device according to the invention, the opening times of gas control devices with diaphragm valves can be shortened.
  • Fig. 1 shows a gas control device 10 according to a first embodiment of the present invention, wherein the gas control device 10 according to Fig. 1 a safety valve 11, a main gas valve 12 and a pressure regulator 13 comprises.
  • the safety valve 11 and the main gas valve 12 are each formed as spring-loaded diaphragm valves.
  • the safety valve 11 designed as a membrane valve comprises a membrane 14, which carries a valve body 15 and is acted upon by a spring element 16.
  • the diaphragm 14 of the safety valve 11 delimits a drive chamber 17 of the safety valve 11, in which a servo pressure prevails, from a gas inlet chamber 18, in which a gas inlet pressure prevails.
  • the spring force of the spring element 16 and the prevailing in the drive chamber 17 of the safety valve 11 servo pressure close the safety valve 11 against the prevailing in the gas inlet chamber 18 gas inlet pressure, for which purpose the valve body 15 of the safety valve 11 is pressed against a valve seat 19.
  • the drive chamber 17 and the gas inlet chamber 18 of the safety valve 11 are coupled via a line 20, wherein in the conduit 20, a diaphragm 21 is integrated.
  • the safety valve 11 and the main gas valve 12 is formed as a spring-loaded diaphragm valve, wherein the main gas valve 12 has a diaphragm 22 which carries a valve body 23 which cooperates with a spring element 24.
  • the membrane 22 of the main gas valve 11 separates a drive chamber 25 thereof from a gas outlet chamber 26.
  • the cooperating with the valve body 23 spring element 24 of the main gas valve 12 and prevailing in the gas outlet 26 gas outlet pressure press the main gas valve 12 in a closed position against the ruling in the drive chamber 25 servo pressure. In the closed state, the valve body 23 of the main gas valve 12 is pressed against a corresponding valve seat 27.
  • the drive chamber 25 and the gas discharge chamber 26 of the main gas valve 12 are according to Fig. 1 coupled via a line 28, wherein in the line 28, a diaphragm 29 is connected. Parallel to the aperture 29 engages according Fig. 1 on the line 28 of the pressure regulator 13, via which the outlet pressure of the gas control device can be adjusted.
  • the adjustment of the outlet pressure via the gas control device 13 takes place in such a way that the spring force of a spring element 31 of the pressure regulator 13 is adjusted via an adjusting screw 30, whereby the spring element 31 presses a valve body 32 of the pressure regulator 13 against a valve seat 33. Then, when the prevailing in the Gasaustasshunt 26 gas outlet pressure is too large, the valve body 32 of the pressure regulator 13 is lifted from the valve seat 33 thereof, so that a pressure compensation can be carried out to limit the outlet pressure.
  • Fig. 1 the drive chamber 17 of the safety valve 11 and the drive chamber 25 of the main gas valve 12 are coupled together by two servo valves 34, which are designed in the embodiment shown as two-way valves. Although technically a single two-way valve would be sufficient as a servo valve 34, two servo valves 34 are present for safety reasons. Both servo valves 34 are always opened or closed only together.
  • both servo valves 34 are opened, in which case a pressure equalization between the in the drive chamber 17 of the safety valve 11 and the takes place in the drive chamber 25 of the main gas valve 12 prevailing pressure. In this case, the pressure in the drive chamber 17 of the safety valve 11 decreases, so that the safety valve 11 can be opened against the spring force of the spring element 16 via the gas inlet pressure within the gas inlet chamber 18.
  • a second gas control device 35 shows Fig. 2 , wherein to avoid unnecessary repetition for the embodiment of Fig. 2 for the same components same reference numerals are used, which in the embodiment of the Fig. 1 and will be discussed below only on such details, by which the embodiment of the Fig. 2 from the embodiment of Fig. 1 different.
  • Fig. 2 are in contrast to the embodiment of Fig. 1 the servo valves 34 are not formed as two-way valves but as three-way valves with the terminals C (Common), NC (Normally Closed) and NO (Normally Open). Then, when the servo valves 34 are closed, there is a connection between the ports C and NO, respectively. Then, on the other hand, when the servo valves 34 of the embodiment of the Fig. 2 are open, there is a connection between the terminals C and NC. In one between the two servo valves 34 of the Fig. 2 extending line 36 is an aperture 37 integrated. In the embodiment of Fig. 2 omitted in the embodiment of the Fig. 1 in the line 28 integrated aperture 29th
  • the drive chamber 17 of the diaphragm valve designed as a safety valve 11 and the drive chamber 25 of the diaphragm valve designed as a main valve 12 are coupled together, can by opening the servo valves 34, a fast pressure equalization between the two drive chambers 17, 25 can be realized so as to reduce the time required for the gas control valves 10 and 35, respectively, to release a gas flow therethrough.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Driven Valves (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

The regulator (10) has a main gas valve (12) including a drive chamber (25) and a gas outlet chamber (26), and closed or opened against servo pressure prevailing in the drive chamber, where the pressure is caused by the spring force of a spring (24) and the gas outlet pressure prevailing in the outlet chamber. A drive chamber (17) of a safety valve (11) and the drive chamber of the gas valve are coupled with each other under interconnection of servo valves (34) e.g. two-way valves that are respectively opened and closed to release and block a gas stream through the safety and gas valves.

Description

Die Erfindung betrifft ein Gasregelgerät.The invention relates to a gas control device.

Aus der DE 198 21 853 C1 ist ein Gasregelgerät für einen Gasbrenner bekannt, welches ein Sicherheitsventil, ein Hauptgasventil und zwei Druckregler umfasst. Nach der DE 198 21 853 C1 ist ein Ausgangssteuerdruck eines ersten Druckreglers durch einen Linearantrieb einstellbar, ein zweiter Druckregler begrenzt den maximal zulässigen Druck des einem Gasbrenner zuzuführenden Gasstroms auf den Druck des dem Brenner zuzuführenden Luftstroms. Bei einer sich verändernden Gasqualität ist der Ausgangssteuerdruck des ersten Druckreglers zur Veränderung des Gasstroms unter Beibehaltung des Luftstroms einstellbar.From the DE 198 21 853 C1 For example, a gas burner gas control device is known which comprises a safety valve, a main gas valve and two pressure regulators. After DE 198 21 853 C1 is an output control pressure of a first pressure regulator by a linear actuator adjustable, a second pressure regulator limits the maximum allowable pressure of a gas burner to be supplied gas flow to the pressure of the burner air flow supplied. With a changing gas quality, the output control pressure of the first pressure regulator for changing the gas flow while maintaining the air flow is adjustable.

Der Erfindung liegt die Aufgabe zu Grunde, ein neuartiges Gasregelgerät zu schaffen. Diese Aufgabe wird durch ein Gasregelgerät mit den Merkmalen des Anspruchs 1 gelöst. Das erfindungsgemäße Gasregelgerät umfasst ein Sicherheitsventil, ein Hauptgasventil und einen Druckregler, wobei das Sicherheitsventil als ein Membranventil mit einer Gaseinlasskammer und einer Antriebskammer ausgebildet ist, welches bedingt durch die Federkraft eines Federelements und einen in der Antriebskammer herrschenden Servodruck entgegen einem in der Gaseinlasskammer herrschenden Eingangsdruck schleißt oder öffnet, wobei das Hauptgasventil als ein Membranventil mit einer Antriebskammer und einer Gasauslasskammer ausgebildet ist, welches bedingt durch die Federkraft eines Federelements und einen in der Gasauslasskammer herrschenden Ausgangsdruck entgegen einem in der Antriebskammer herrschenden Servodruck schleißt oder öffnet, und wobei die Antriebskammer des Sicherheitsventils und die Antriebskammer des Hauptgasventils unter Zwischenschaltung mindestens eines Servoventils, welches bzw. welche zum Freigeben eines Gasstroms durch das Sicherheitsventil und das Hauptgasventil geöffnet und zum Sperren eines Gasstroms durch das Sicherheitsventil und das Hauptgasventil geschlossen wird bzw. werden, miteinander gekoppelt sind.The invention is based on the object to provide a novel gas control device. This object is achieved by a gas control device having the features of claim 1. The gas control device according to the invention comprises a safety valve, a main gas valve and a pressure regulator, wherein the safety valve is designed as a diaphragm valve with a gas inlet chamber and a drive chamber which due to the spring force of a spring element and a prevailing in the drive chamber servo pressure against a prevailing in the gas inlet chamber inlet pressure wears or opens, wherein the main gas valve is designed as a diaphragm valve with a drive chamber and a gas outlet chamber which due to the spring force of a spring element and a prevailing in the gas outlet chamber outlet pressure against a prevailing in the drive chamber servo pressure or opens, and wherein the drive chamber of the safety valve and the drive chamber of the main gas valve with interposition at least one servo valve which is opened to release a gas flow through the safety valve and the main gas valve and closed to block a gas flow through the safety valve and the main gas valve, are coupled together.

Beim erfindungsgemäßen Gasregelgerät ist sowohl das Sicherheitsventil als auch das Hauptgasventil jeweils als Membranventil ausgeführt. Die Antriebskammern dieser beiden Membranventile sind unter Zwischenschaltung mindestens eines Servoventils miteinander gekoppelt. Dann, wenn ein Gasstrom durch das Gasregelgerät bzw. durch das Sicherheitsventil und das Hauptgasventil freigegeben werden soll, werden sämtliche zwischen die Antriebskammern von Sicherheitsventil und Hauptgasventil geschalteten Servoventile geöffnet. Durch Öffnen der Servoventile wird erreicht, dass ein Druckausgleich zwischen beiden Antriebskammern erfolgt, wobei hierbei die Antriebskammer des Hauptgasventils über die Antriebskammer des Sicherheitsventils gefüllt wird. Hierdurch kann ein relativ schnelles Öffnen des Gasregelgeräts trotz Verwendung von Membranventilen realisiert werden. Mit dem erfindungsgemäßen Gasregelgerät können demnach die Öffnungszeiten von Gasregelgeräten mit Membranventilen verkürzt werden.In the gas control device according to the invention, both the safety valve and the main gas valve are each designed as a diaphragm valve. The drive chambers of these two diaphragm valves are coupled together with the interposition of at least one servo valve. Then, when a gas flow through the gas control device or through the safety valve and the main gas valve is to be released, all connected between the drive chambers of safety valve and main gas valve servo valves are opened. By opening the servo valves is achieved that a pressure equalization between the two drive chambers takes place, in which case the drive chamber of the main gas valve is filled via the drive chamber of the safety valve. In this way, a relatively fast opening of the gas control device can be realized despite the use of diaphragm valves. Accordingly, with the gas control device according to the invention, the opening times of gas control devices with diaphragm valves can be shortened.

Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung.Preferred embodiments of the invention will become apparent from the dependent claims and the description below.

Nachfolgend werden Ausführungsbeispiele der Erfindung, ohne hierauf beschränkt zu sein, anhand der Zeichnung näher erläutert. In der Zeichnung zeigt:

Fig.1:
ein Blockschaltbild eines erfindungsgemäßen Gasregelgeräts nach einem ersten Ausführungsbeispiel der Erfindung; und
Fig. 2:
ein Blockschaltbild eines erfindungsgemäßen Gasregelgeräts nach einem zweiten Ausführungsbeispiel der Erfindung.
Hereinafter, embodiments of the invention, without being limited thereto, explained in more detail with reference to the drawing. In the drawing shows:
Fig.1:
a block diagram of a gas control device according to the invention according to a first embodiment of the invention; and
Fig. 2:
a block diagram of a gas control device according to the invention according to a second embodiment of the invention.

Fig. 1 zeigt ein Gasregelgerät 10 nach einem ersten Ausführungsbeispiel der hier vorliegenden Erfindung, wobei das Gasregelgerät 10 gemäß Fig. 1 ein Sicherheitsventil 11, ein Hauptgasventil 12 und einen Druckregler 13 umfasst. Das Sicherheitsventil 11 und das Hauptgasventil 12 sind jeweils als federbeaufschlagte Membranventile ausgebildet. Fig. 1 shows a gas control device 10 according to a first embodiment of the present invention, wherein the gas control device 10 according to Fig. 1 a safety valve 11, a main gas valve 12 and a pressure regulator 13 comprises. The safety valve 11 and the main gas valve 12 are each formed as spring-loaded diaphragm valves.

Das als Membranventil ausgebildete Sicherheitsventil 11 umfasst eine Membran 14, die einen Ventilkörper 15 trägt und von einem Federelement 16 beaufschlagt ist. Die Membran 14 des Sicherheitsventils 11 grenzt eine Antriebskammer 17 des Sicherheitsventils 11, in welcher ein Servodruck herrscht, von einer Gaseinlasskammer 18, in welcher ein Gaseinlassdruck herrscht, ab.The safety valve 11 designed as a membrane valve comprises a membrane 14, which carries a valve body 15 and is acted upon by a spring element 16. The diaphragm 14 of the safety valve 11 delimits a drive chamber 17 of the safety valve 11, in which a servo pressure prevails, from a gas inlet chamber 18, in which a gas inlet pressure prevails.

Die Federkraft des Federelements 16 sowie der in der Antriebskammer 17 des Sicherheitsventils 11 herrschende Servodruck schließen das Sicherheitsventil 11 entgegen dem in der Gaseinlasskammer 18 herrschenden Gaseinlassdruck, wobei hierzu der Ventilkörper 15 des Sicherheitsventils 11 gegen einen Ventilsitz 19 gedrückt wird. Gemäß Fig. 1 sind die Antriebskammer 17 und die Gaseinlasskammer 18 des Sicherheitsventils 11 über eine Leitung 20 gekoppelt, wobei in die Leitung 20 eine Blende 21 integriert ist.The spring force of the spring element 16 and the prevailing in the drive chamber 17 of the safety valve 11 servo pressure close the safety valve 11 against the prevailing in the gas inlet chamber 18 gas inlet pressure, for which purpose the valve body 15 of the safety valve 11 is pressed against a valve seat 19. According to Fig. 1 the drive chamber 17 and the gas inlet chamber 18 of the safety valve 11 are coupled via a line 20, wherein in the conduit 20, a diaphragm 21 is integrated.

Ebenso wie das Sicherheitsventil 11 ist auch das Hauptgasventil 12 als federbeaufschlagtes Membranventil ausgebildet, wobei das Hauptgasventil 12 eine Membran 22 aufweist, die einen Ventilkörper 23 trägt, der mit einem Federelement 24 zusammenwirkt. Die Membran 22 des Hauptgasventils 11 trennt eine Antriebskammer 25 desselben von einer Gasauslasskammer 26 ab. In der Antriebskammer 25 des Hauptgasventils 12 herrscht ein Servodruck und in der Gasauslasskammer 26 ein Gasauslassdruck. Das mit dem Ventilkörper 23 zusammenwirkende Federelement 24 des Hauptgasventils 12 sowie der in der Gasauslasskammer 26 herrschende Gasauslassdruck drücken das Hauptgasventil 12 in eine Schließstellung entgegen dem in der Antriebskammer 25 herrschenden Servodruck. In geschlossenem Zustand wird der Ventilkörper 23 des Hauptgasventils 12 gegen einen entsprechenden Ventilsitz 27 gedrückt.As well as the safety valve 11 and the main gas valve 12 is formed as a spring-loaded diaphragm valve, wherein the main gas valve 12 has a diaphragm 22 which carries a valve body 23 which cooperates with a spring element 24. The membrane 22 of the main gas valve 11 separates a drive chamber 25 thereof from a gas outlet chamber 26. In the drive chamber 25 of the main gas valve 12 there is a servo pressure and in the gas outlet chamber 26, a gas outlet pressure. The cooperating with the valve body 23 spring element 24 of the main gas valve 12 and prevailing in the gas outlet 26 gas outlet pressure press the main gas valve 12 in a closed position against the ruling in the drive chamber 25 servo pressure. In the closed state, the valve body 23 of the main gas valve 12 is pressed against a corresponding valve seat 27.

Die Antriebskammer 25 und die Gasauslasskammer 26 des Hauptgasventils 12 sind gemäß Fig. 1 über eine Leitung 28 gekoppelt, wobei in die Leitung 28 eine Blende 29 geschaltet ist. Parallel zur Blende 29 greift gemäß Fig. 1 an der Leitung 28 der Druckregler 13 an, über den der Auslassdruck des Gasregelgeräts eingestellt werden kann. Die Einstellung des Auslassdrucks über das Gasregelgerät 13 erfolgt derart, dass über eine Einstellschraube 30 die Federkraft eines Federelements 31 des Druckreglers 13 eingestellt wird, wobei das Federelement 31 einen Ventilkörper 32 des Druckreglers 13 gegen einen Ventilsitz 33 desselben drückt. Dann, wenn der in der Gasaustasskammer 26 herrschende Gasauslassdruck zu groß wird, wird der Ventilkörper 32 des Druckreglers 13 vom Ventilsitz 33 desselben abgehoben, sodass ein Druckausgleich zur Begrenzung des Auslassdrucks erfolgen kann.The drive chamber 25 and the gas discharge chamber 26 of the main gas valve 12 are according to Fig. 1 coupled via a line 28, wherein in the line 28, a diaphragm 29 is connected. Parallel to the aperture 29 engages according Fig. 1 on the line 28 of the pressure regulator 13, via which the outlet pressure of the gas control device can be adjusted. The adjustment of the outlet pressure via the gas control device 13 takes place in such a way that the spring force of a spring element 31 of the pressure regulator 13 is adjusted via an adjusting screw 30, whereby the spring element 31 presses a valve body 32 of the pressure regulator 13 against a valve seat 33. Then, when the prevailing in the Gasaustasskammer 26 gas outlet pressure is too large, the valve body 32 of the pressure regulator 13 is lifted from the valve seat 33 thereof, so that a pressure compensation can be carried out to limit the outlet pressure.

Gemäß Fig. 1 sind die Antriebskammer 17 des Sicherheitsventils 11 und die Antriebskammer 25 des Hauptgasventils 12 durch zwei Servoventile 34 miteinander gekoppelt, die im gezeigten Ausführungsbeispiel als Zweiwegeventile ausgeführt sind. Obwohl technisch ein einziges Zweiwegeventil als Servoventil 34 ausreichend wäre, sind aus Sicherheitsgründen zwei Servoventile 34 vorhanden. Beide Servoventile 34 werden immer nur gemeinsam geöffnet oder geschlossen.According to Fig. 1 the drive chamber 17 of the safety valve 11 and the drive chamber 25 of the main gas valve 12 are coupled together by two servo valves 34, which are designed in the embodiment shown as two-way valves. Although technically a single two-way valve would be sufficient as a servo valve 34, two servo valves 34 are present for safety reasons. Both servo valves 34 are always opened or closed only together.

Soll das in Fig. 1 dargestellte Gasregelgerät 10 ausgehend von einem Zustand, in welchem dasselbe einen Gasfluss sperrt, in einen Zustand überführt werden, in welcher dasselbe einen Gasfluss freigibt, so werden beide Servoventile 34 geöffnet, wobei dann ein Druckausgleich zwischen dem in der Antriebskammer 17 des Sicherheitsventils 11 und dem in der Antriebskammer 25 des Hauptgasventils 12 herrschenden Druck erfolgt. Hierbei nimmt der Druck in der Antriebskammer 17 des Sicherheitsventils 11 ab, sodass das Sicherheitsventil 11 über den Gaseinlassdruck innerhalb der Gaseinlasskammer 18 entgegen der Federkraft des Federelements 16 geöffnet werden kann.Should that be in Fig. 1 starting from a state in which the same blocks a gas flow, in a state in which it releases a gas flow, both servo valves 34 are opened, in which case a pressure equalization between the in the drive chamber 17 of the safety valve 11 and the takes place in the drive chamber 25 of the main gas valve 12 prevailing pressure. In this case, the pressure in the drive chamber 17 of the safety valve 11 decreases, so that the safety valve 11 can be opened against the spring force of the spring element 16 via the gas inlet pressure within the gas inlet chamber 18.

Hierdurch wird dann Gas von der Antriebskammer 17 des Sicherheitsventils 11 1 in die Antriebskammer 25 des Hauptgasventils 12 gepumpt bzw. überführt. Hierdurch wird dann innerhalb kurzer Zeit innerhalb der Antriebskammer 25 des Hauptgasventils 12 ein Servodruck aufgebaut, der zum Öffnen des Hauptgasventils 12 entgegen der Federkraft des Federelements 24 und des Gasauslassdrucks in der Gasauslasskammer 26 ausreichend ist.As a result, gas is then pumped from the drive chamber 17 of the safety valve 11 1 in the drive chamber 25 of the main gas valve 12 or transferred. As a result, within a short time within the drive chamber 25 of the main gas valve 12, a servo pressure is built up which is sufficient for opening the main gas valve 12 against the spring force of the spring element 24 and the gas outlet pressure in the gas outlet chamber 26.

Ein zweites erfindungsgemäßes Gasregelgerät 35 zeigt Fig. 2, wobei zur Vermeidung unnötiger Wiederholungen für das Ausführungsbeispiel der Fig. 2 für gleiche Baugruppen gleiche Bezugsziffern verwendet werden, die im Ausführungsbeispiel der Fig. 1 und nachfolgend nur auf solche Details eingegangen wird, durch die sich das Ausführungsbeispiel der Fig. 2 vom Ausführungsbeispiel der Fig. 1 unterscheidet.A second gas control device 35 according to the invention shows Fig. 2 , wherein to avoid unnecessary repetition for the embodiment of Fig. 2 for the same components same reference numerals are used, which in the embodiment of the Fig. 1 and will be discussed below only on such details, by which the embodiment of the Fig. 2 from the embodiment of Fig. 1 different.

Im Ausführungsbeispiel der Fig. 2 sind im Unterschied zum Ausführungsbeispiel der Fig. 1 die Servoventile 34 nicht als Zweiwegeventile sondern als Dreiwegeventile mit den Anschlüssen C (Common), NC (Normally Closed) und NO (Normally Open) ausgebildet. Dann, wenn die Servoventile 34 geschlossen sind, besteht jeweils eine Verbindung zwischen den Anschlüssen C und NO. Dann hingegen, wenn die Servoventile 34 des Ausführungsbeispiels der Fig. 2 geöffnet sind, besteht jeweils eine Verbindung zwischen den Anschlüssen C und NC. In eine zwischen den beiden Servoventilen 34 der Fig. 2 verlaufende Leitung 36 ist eine Blende 37 integriert. Im Ausführungsbeispiel der Fig. 2 entfällt die im Ausführungsbeispiel der Fig. 1 in die Leitung 28 integrierte Blende 29.In the embodiment of Fig. 2 are in contrast to the embodiment of Fig. 1 the servo valves 34 are not formed as two-way valves but as three-way valves with the terminals C (Common), NC (Normally Closed) and NO (Normally Open). Then, when the servo valves 34 are closed, there is a connection between the ports C and NO, respectively. Then, on the other hand, when the servo valves 34 of the embodiment of the Fig. 2 are open, there is a connection between the terminals C and NC. In one between the two servo valves 34 of the Fig. 2 extending line 36 is an aperture 37 integrated. In the embodiment of Fig. 2 omitted in the embodiment of the Fig. 1 in the line 28 integrated aperture 29th

Bedingt dadurch, dass bei den erfindungsgemäßen Gasregelgeräten 10 bzw. 35 die Antriebskammer 17 des als Membranventil ausgebildeten Sicherheitsventils 11 und die Antriebskammer 25 des als Membranventil ausgebildeten Hauptgasventils 12 miteinander gekoppelt sind, kann durch Öffnen der Servoventile 34 ein schneller Druckausgleich zwischen den beiden Antriebskammern 17, 25 realisiert werden, um so die Zeit zu verringern, die das Gasregelventil 10 bzw. 35 benötigt, um einen Gasdurchfluss durch dasselbe freizugeben.Due to the fact that in the gas control devices 10 and 35 according to the invention the drive chamber 17 of the diaphragm valve designed as a safety valve 11 and the drive chamber 25 of the diaphragm valve designed as a main valve 12 are coupled together, can by opening the servo valves 34, a fast pressure equalization between the two drive chambers 17, 25 can be realized so as to reduce the time required for the gas control valves 10 and 35, respectively, to release a gas flow therethrough.

Das erfindungsgemäße Gasregelventil 10 bzw. 35 der Fig. 1 bzw. 2 dient der Bereitstellung eines Gasstroms zu einem Gasbrenner, wobei einem Gasbrenner neben einem Gasstrom auch ein Verbrennungsluftstrom bereitgestellt werden muss. Dann, wenn das erfindungsgemäße Gasregelgerät 10 bzw. 35 zur Etablierung einer 1:1 Gas/Luft-Regelung verwendet wird, verfügt dasselbe über den weiteren Vorteil, dass dann, wenn das Gasregelgerät 10 bzw. 35 zum Starten eines Gasbrenners den Gasdurchfluss freigibt, sich ein kurzes Überschießen des Gasauslassdrucks einstellt, sodass sich ein Gas/Luft-Verhältnis beim Starten des Gasbrenners in Richtung auf ein reicheres Gas/Luft-Gemisch verschiebt. Hierdurch kann der Start eines solchen Gasbrenners verbessert werden. Bezugszeichenliste

10
Gasregelgerät
11
Sicherheitsventil
12
Hauptgasventil
13
Druckregler
14
Membran
15
Ventilkörper
16
Federelement
17
Antriebskammer
18
Gaseinlasskammer
19
Ventilsitz
20
Leitung
21
Blende
22
Membran
23
Ventilkörper
24
Federelement
25
Antriebskammer
26
Gasauslasskammer
27
Ventilsitz
28
Leitung
29
Blende
30
Einstellschraube
31
Federelement
32
Ventilkörper
33
Ventilsitz
34
Servoventil
35
Gasregelgerät
36
Leitung
37
Blende
The gas control valve 10 and 35 of the invention Fig. 1 or 2 serves to provide a gas flow to a gas burner, wherein a gas burner in addition to a gas flow and a combustion air flow must be provided. Then, when the gas control apparatus 10 or 35 of the present invention is used to establish a 1: 1 gas / air control, it has the further advantage that when the gas control apparatus 10 or 35 releases the gas flow to start a gas burner a short overshoot of the gas outlet pressure sets, so that a gas / air ratio shifts when starting the gas burner towards a richer gas / air mixture. As a result, the start of such a gas burner can be improved. LIST OF REFERENCE NUMBERS
10
Gas Regulator
11
safety valve
12
Main gas valve
13
pressure regulator
14
membrane
15
valve body
16
spring element
17
drive chamber
18
Gas inlet chamber
19
valve seat
20
management
21
cover
22
membrane
23
valve body
24
spring element
25
drive chamber
26
gas outlet
27
valve seat
28
management
29
cover
30
adjustment
31
spring element
32
valve body
33
valve seat
34
servo valve
35
Gas Regulator
36
management
37
cover

Claims (6)

Gasregelgerät, mit einem Sicherheitsventil (11), einem Hauptgasventil (12) und einem Druckregler (13), wobei das Sicherheitsventil (11) als ein Membranventil mit einer Gaseinlasskammer (18) und einer Antriebskammer (17) ausgebildet ist, welches bedingt durch die Federkraft eines Federelements (16) und einen in der Antriebskammer (17) herrschenden Servodruck entgegen einem in der Gaseinlasskammer (16) herrschenden Gaseingangsdruck schleißt oder öffnet, wobei das Hauptgasventil (12) als ein Membranventil mit einer Antriebskammer (25) und einer Gasauslasskammer (26) ausgebildet ist, welches bedingt durch die Federkraft eines Federelements (24) und einen in der Gasauslasskammer (26) herrschenden Gasausgangsdruck entgegen einem in der Antriebskammer (25) herrschenden Servodruck schleißt oder öffnet, und wobei die Antriebskammer (17) des Sicherheitsventils (11) und die Antriebskammer (25) des Hauptgasventils (12) unter Zwischenschaltung mindestens eines Servoventils (34), welches bzw. welche zum Freigeben eines Gasstroms durch das Sicherheitsventil (11) und das Hauptgasventil (12) geöffnet und zum Sperren eines Gasstroms durch das Sicherheitsventil (11) und das Hauptgasventil (2) geschlossen wird bzw. werden, miteinander gekoppelt sind.Gas control device, comprising a safety valve (11), a main gas valve (12) and a pressure regulator (13), wherein the safety valve (11) is designed as a diaphragm valve with a gas inlet chamber (18) and a drive chamber (17) due to the spring force a main spring valve (12) acts as a diaphragm valve with a drive chamber (25) and a gas outlet chamber (26) is formed, which due to the spring force of a spring element (24) and in the Gasauslasskammer (26) prevailing gas outlet pressure against a prevailing in the drive chamber (25) servo pressure breaks or opens, and wherein the drive chamber (17) of the safety valve (11) and the drive chamber (25) of the main gas valve (12) with the interposition of at least one servo valve (34), which or w is opened to release a gas flow through the safety valve (11) and the main gas valve (12) and closed to block a flow of gas through the safety valve (11) and the main gas valve (2) are coupled together. Gasregelgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Antriebskammer (17) des Sicherheitsventils (11) und die Antriebskammer (25) des Hauptgasventils (12) unter Zwischenschaltung von zwei Servoventilen (34) miteinander gekoppelt sind.Gas control device according to claim 1, characterized in that the drive chamber (17) of the safety valve (11) and the drive chamber (25) of the main gas valve (12) with the interposition of two servo valves (34) are coupled together. Gasregelgerät nach Anspruch 2, dadurch gekennzeichnet, dass beide Servoventile (34) immer gemeinsam geöffnet oder geschlossen sind.Gas control device according to claim 2, characterized in that both servo valves (34) are always open or closed together. Gasregelgerät nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die beiden Servoventile (34) als Zweiwegeventile ausgebildet sind.Gas control device according to claim 2 or 3, characterized in that the two servo valves (34) are designed as two-way valves. Gasregelgerät nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die beiden Servoventile (34) als Dreiwegeventile ausgebildet sind.Gas control device according to claim 2 or 3, characterized in that the two servo valves (34) are designed as three-way valves. Gasregelgerät nach Anspruch 5, dadurch gekennzeichnet, dass in eine Leitung (36) zwischen den beiden Dreiwegeventile eine Blende (37) geschaltet ist.Gas control device according to claim 5, characterized in that in a line (36) between the two three-way valves, a diaphragm (37) is connected.
EP09005857.9A 2008-05-23 2009-04-28 Gas regulator Active EP2123979B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008024843A DE102008024843A1 (en) 2008-05-23 2008-05-23 Gas Regulator

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EP2123979A2 true EP2123979A2 (en) 2009-11-25
EP2123979A3 EP2123979A3 (en) 2014-08-27
EP2123979B1 EP2123979B1 (en) 2019-06-05

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ID=40990111

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EP09005857.9A Active EP2123979B1 (en) 2008-05-23 2009-04-28 Gas regulator

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Publication number Priority date Publication date Assignee Title
CN116981884A (en) 2021-03-04 2023-10-31 彼特威有限责任公司 Partially premixed gas burner apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19821853C1 (en) 1998-05-15 1999-07-29 Honeywell Bv Regulator for gas burner

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
JPH01174819A (en) * 1987-12-28 1989-07-11 Yamatake Honeywell Co Ltd Flow control valve for gas
EP0644377B1 (en) * 1993-09-16 1996-10-23 Honeywell B.V. Control device for gas burners
DE4337703C1 (en) * 1993-11-05 1995-03-23 Dungs Karl Gmbh & Co Multiple actuating device with regulator on the inlet side
DE4343306A1 (en) * 1993-12-17 1995-06-22 Gastechnic Prod Vertriebges Gas pipeline pressure regulation system
US5944257A (en) * 1996-11-15 1999-08-31 Honeywell Inc. Bulb-operated modulating gas valve with minimum bypass
DE10232647B4 (en) * 2002-07-18 2004-05-13 Honeywell B.V. Control device for gas burners
CA2630767A1 (en) * 2005-11-23 2007-05-31 Sit La Precisa S.P.A. Device for controlling the delivery of a combustible gas to a burner apparatus
WO2008012849A1 (en) * 2006-07-28 2008-01-31 Sit La Precisa S.P.A. A device for controlling the delivery of a combustible gas to a burner apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19821853C1 (en) 1998-05-15 1999-07-29 Honeywell Bv Regulator for gas burner

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DE102008024843A1 (en) 2009-11-26
EP2123979B1 (en) 2019-06-05

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