EP0020280B1 - Sicherheitszündvorrichtung für ein Brennerventil - Google Patents

Sicherheitszündvorrichtung für ein Brennerventil Download PDF

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Publication number
EP0020280B1
EP0020280B1 EP80400797A EP80400797A EP0020280B1 EP 0020280 B1 EP0020280 B1 EP 0020280B1 EP 80400797 A EP80400797 A EP 80400797A EP 80400797 A EP80400797 A EP 80400797A EP 0020280 B1 EP0020280 B1 EP 0020280B1
Authority
EP
European Patent Office
Prior art keywords
valve
rectifier
coil
spark
control box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP80400797A
Other languages
English (en)
French (fr)
Other versions
EP0020280A1 (de
Inventor
Pierre Sobole
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.)
BOURGUIGNONNE DE MECANIQUE Ste
Original Assignee
BOURGUIGNONNE DE MECANIQUE Ste
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BOURGUIGNONNE DE MECANIQUE Ste filed Critical BOURGUIGNONNE DE MECANIQUE Ste
Priority to AT80400797T priority Critical patent/ATE3329T1/de
Publication of EP0020280A1 publication Critical patent/EP0020280A1/de
Application granted granted Critical
Publication of EP0020280B1 publication Critical patent/EP0020280B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q3/00—Igniters using electrically-produced sparks
    • 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
    • F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00—Fail safe
    • F23N2231/04—Fail safe for electrical power failures
    • 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
    • Y10T137/6416—With heating or cooling of the system

Definitions

  • the present invention relates to a safety ignition device intended in particular to operate in combination with a valve in particular for burners or radiant panels
  • a valve body having a gas supply duct and a housing for an injector, containing a seat for a valve comprising on the one hand a safety body housing a magnetic head provided with a winding connected by an electrical conductor to a thermocouple and on the other hand a control unit housing a valve control coil, a production assembly of gas ignition sparks, a rectifier, a printed circuit and a grounding lug.
  • a device comprising two burners, a valve comprising a hollow cylindrical body at the base of which is placed a magnetic head in which a plunger core comprising a rod secured to it can slide. a disk.
  • a valve is crimped thereon and held in the closed position by a spring.
  • the magnetic head is connected to a thermocouple located in the flame of a burner.
  • a magnetic coil allows the opening of the valve while the thermo. couple is sufficiently heated.
  • a printed circuit is connected to a rectifier giving greater stability to the action of the coil.
  • the object of the present invention is in particular to overcome these drawbacks by proposing such an ignition device characterized in that the integrated means of protection against transient overvoltages consist of a "varistor making it possible to limit the voltages and the shock currents , absorb disturbing energies and stabilize tensions.
  • the means of protection against transient overvoltages, the coil, the rectifier, the igniter of the spark production assembly, the printed circuit and the respective connections are housed in a control in the form of a molded block of insulating, compact, waterproof and protected material.
  • a rectifier which can be a diode bridge ensures a power supply which eliminates any vibration and improves the reliability of the assembly.
  • the electrical part of the device is preferably integrated in a single housing overmolded in resin or other insulating body, and therefore totally waterproof and protected from dust and corrosive atmospheres, compact, less bulky, easier to use, interchangeable.
  • the improved safety ignition device according to the present invention and FIG. 1 is in particular intended to operate in combination with a valve 1, for example for burners or radiant panels, which comprises a rigid valve body 2 provided with a connection d inlet 3 forming a supply duct 4 for combustible gas and an adjacent and opposite housing 5 for an injector 6 not forming part of the invention.
  • a valve for example for burners or radiant panels, which comprises a rigid valve body 2 provided with a connection d inlet 3 forming a supply duct 4 for combustible gas and an adjacent and opposite housing 5 for an injector 6 not forming part of the invention.
  • the valve body 2 defines a valve seat 7 for a valve 8 interposed on the passage of gas between the supply duct 4 and the injector 6 capable of allowing or prohibiting the passage of gas from the duct 4 to the injector 6, in the direction of the arrows f.
  • the valve body 2 also comprises a safety body 9, hollow adjacent to the connector 3 and to the housing 5, in communication with the interior space for the passage of the gas in which is housed a magnetic head 10 maintained for example by means of a gas tight nut screwed onto the safety body which comprises in particular a winding of a fixed electromagnet (not shown), connected by conductors electrical 11 to a thermocouple 12 which, once brought to a certain temperature, causes the circulation of a microcurrent in the winding sufficient to keep the valve 8 away from its seat, by establishing communication between the conduit 4 and the injector 6.
  • a safety body 9 hollow adjacent to the connector 3 and to the housing 5, in communication with the interior space for the passage of the gas in which is housed a magnetic head 10 maintained for example by means of a gas tight nut screwed onto the safety body which comprises in particular a winding of a fixed electromagnet (not shown), connected by conductors electrical 11 to a thermocouple 12 which, once brought to a certain temperature, causes the circulation of a microcurrent in the
  • thermocouple 12 is placed, as necessary, either in the flame of the injector 6, or in the flame of a burner, or in any other place whose temperature is a factor controlling the operation of the injector 6.
  • the valve body 2 finally comprises a hollow pusher body 13, adjacent to the inlet connector 3 and to the housing 5, in the same direction and in the opposite direction to the safety body 9, to the end part of which is preferably fixed. removable, a control unit 14.
  • This control unit 14 serves as a housing for a coil 15 having a winding 16 in which is axially sliding mounted a plunger core 17 bearing on a push rod 18 mounted axially sliding in the pusher body by means of guidance and resting at one of its ends on the plunger core 17 and, at its other end, on the valve 8, on the side opposite to that where its rod is located.
  • control box 14 are also housed a current rectifier 20 and a printed circuit or equivalent ensuring the necessary electrical connections (not shown).
  • This box 14 is also provided with an electrical outlet 21, waterproof, with safety lock to which can be connected or disconnected with all the safety measures considered necessary or essential, an electrical connector 22 also waterproof and with lock of safety, provided with electrical supply conductors 23.
  • the electrical diagram for controlling the valve comprises, on the printed circuit of the control box 14, an arrival with two pads 24, 25 of single-phase alternating current (110 V 50 Hz or 220 V 50 Hz , etc.) from the normal network, in particular by a timed control member (not shown) and the electrical supply conductors 23.
  • the rectifier 20 supplying the coil 15 and also an igniter 26 which supplies. in high-discharge current, for example 15,000 V, a spark gap 27 placed in a gas ignition zone. Grounding of the circuits is advantageously carried out using a tab for grounding 28.
  • the electrical connection between the igniter 26, placed in the control box 14 and the spark gap 27, placed in a gas ignition zone is carried out using a high voltage output conductor 29.
  • the connection of the tab 28 with the respective grounding terminal of the printed circuit inside the control box 14 is produced using a grounding conductor 30.
  • valve being at rest, and all its parts in the normal rest position, as illustrated in the right half-view of FIG. 1, in particular the valve 8 applied to the seat 7, the timed control member, in particular a contactor manual or slaved to a thermostat, a control clock, a door opening device 'or any other similar control means, sends to the device the single-phase current which feeds by the printed circuit the rectifier 20 and the winding 16 of the coil 15.
  • the plunger core 17 is displaced, which causes the concomitant displacement of the push rod 18 and therefore that of the valve 8 against the spring 19 in the direction of the opening of the gas passage between the conduit 4 and the injector 6 .
  • the rectified current feeds, also by the connections of the printed circuit, the igniter-26 which sends to the spark gap 27 the electric heaters for ignition of the gas at the outlet of the injector 6.
  • the gas is ignited and the injector in service.
  • the timed controller ceases to send the single-phase ignition control current after a relatively short time, but sufficient for the temperature of the thermocouple 12 to be high enough for the latter to send the current to the magnetic head. necessary for the valve 8 to be kept open.
  • the device is under the supervision of the thermocouple 12 until a failure or new conditions cause the combustion of the gas to stop and, therefore, the thermocouple to cool, the current in the head to stop. magnetic and closing the valve 8.
  • the electrical system of the device of this invention and Figures 2 and 3 comprise, in more detail, the rectifier 20 supplied as already mentioned and supplying rectified current, in parallel according to the embodiment of Figure 1 on the one hand l winding 16 of the coil 1e and on the other hand a set of high voltage sparks 31, according to any suitable method and device.
  • the electrical system then comprises, according to the present invention, integrated means of protection against transient overvoltages constituted by a “varistor J whose function is to limit the voltages and the shock currents, to address the disturbing energies and to stabilize the voltages, of whatever nature.
  • a varistor J whose function is to limit the voltages and the shock currents, to address the disturbing energies and to stabilize the voltages, of whatever nature.
  • To this varistor J is associated a lower resistance than the resistance B or any member or assembly of the same function, that is to say on the one hand not to disturb the operation of the capacitor C and on the other hand to attenuate the reactive voltage peaks of the transformer E primary.
  • the varistor J is placed, according to a first embodiment illustrated by FIG. 2, downstream of the rectifier 20, in parallel with on the one hand the coil 15 and on the other hand the igniter 26, in particular on the primary of the transformer E.
  • the rectifier 20 feeds directly only the coil 15.
  • the spark production assembly 31 is supplied with current rectified by a spark diode 32.
  • the varistor J is placed in this second embodiment upstream of the rectifier 20, so as to protect the two circuits supplied separately with rectified current.
  • all the component members, electrical and electronic assemblies such as in particular coil 15, rectifier 20, igniter 26, printed circuit and respective connections (apart from spark gap 27 and lug 28) can be housed in the housing 14, in particular in the form of a single block, overmolded in resin or any other insulating body, compact waterproof and protected against dust and any other harmful or corrosive atmosphere.
  • the external connections are reduced to the conductors 11 of the thermocouple 12, of the power supply 23, of high voltage 29 and of grounding 30.
  • This arrangement also makes it possible, optionally and under certain conditions, to eliminate these external connection means outside the supply connections 23, in particular by making the spark gap 27 integral with the control box 14 and by integrating the grounding lug 28 in the coil magnetic circuit 15.

Claims (6)

1. Sicherheitszündungsvorrichtung vor allem dazu bestimmt, in Verbindung mit einem Ventil funktionieren (1), vor allem für Brenner oder ausstrahlende Paneele, welche einen Ventilkörper (2) haben, der eine Gaszuführungsröhre (4) und ein Lager für einen Injektor (6) hat mit einem Platz (7) für eine Klappe (8) einbegreifend einerseits, einen Sicherheitskörper (9) in welchem ein Magnetkopf (10) liegt, welcher eine Wicklung hat, die durch einen Elektrizitätsleiter (11) mit einem Thermoelement (12) verbunden ist, andererseits ein Antriebsgehäuse (14) in welchem die Antriebsrolle (15) der Klappe liegt, einen Komplex (31) zur Herstellung der Anzündfunken für das Gas, einenGleichrichter (20) einen printed circuit, einen Aufschlag (28) zum an die Masse setzen und integrierte Schutzvorrichtung gegen vorrübergehende Überspannungen und zum Stabilisieren der Spannungen, dadurch gekennzeichnet, dass diese Schutzvorrichtungen durch einen Varistor J konstituiert sind, welcher einerseits die Antriebsrolle (15) der Klappe und andererseits den Komplex (31) zur Herstellung der Anzündfunken schützt, sowie, wenn nötig, den Gleichrichter (20).
2. Sicherheitszündungsvorrichtung nach der Anspruch 1, deren Komplex zur Herstellung von Anzündfunken einen Widerstand B, einen Kondensator C, eine Gastiode D, einen Transformator E und einen Entlader hat, ein Anzünder dieses Entladers und die Antriebsrolle werden parallel vom Gleichrichter versorgt, dadurch gekennzeichnet, dass der Varistor J unterhalb des Gleichrichters (20) ist, parallel zur Rolle (15) und dem Anzünder (26).
3. Sicherheitszündungsvorrichtung nach der Anspruch 1, deren Gleichrichter nur die Antriebsrolle der Klappe versorgt, der Komplex zur Funkenherstellung wird durch. eine Diode versorgt, dadurch gekennzeichnet, dass sich der Varistor J oberhalb des Gleichrichters (20) befindet und auf solche Art und Weise, dass dieser Gleichrichter (20) sich geschützt wird.
4. Sicherheitszündungsvorrichtung nach den Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Schutzmöglichkeiten gegen vorübergehende Überspannungen, die Rolle (15) der Gleichrichter (20), die Zündung (26) des Komplexes für Funkenherstellung (31) des printed circuit und der jeweiligen Verbindungen im Antriebsgehäuse (14) in der Form eines abgeformten Blockes, aus Isoliermaterial, kompakt, wasserdicht und geschützt liegen.
5. Sicherheitszündungsvorrichtung nach der Ansprüche 4, dadurch gekennzeichnet dass das Antriebsgehäuse eine wasserdichte Steckdose (21) hat, mit Schutzverschluss, welche mit dem Normalnetz durch einen Schalter (22) auch wasserdicht verbunden ist, mit Verschluss versehen und mit den angebrachten Elektrizitätsleiter für die Versorgung (23), die äusseren Verbindungen sind reduziert auf die Elektrizitätsleiter (11) für das Thermoelement (12) der Versorgung (23) für die Hochspannung (29) und dem Aufschlag (28) zum an die Masse setzen (30) und dem Antriebsgehäuse (14).
6. Sicherheitszündungsvorrichtung nach den Ansprüche 4 und 5, dadurch gekennzeichnet dass die Leiter (11) für das Thermoelement (12) der Hochspannung (29) und an die Masse setzen (30) abgeschaffen sind durch den Entlader (27), der mit dem Antriebsgehäuse (14) kraftschlüssig verbunden ist und der Aufschlag (28) in den Magnetkreis der Rolle (15) integriert ist.
EP80400797A 1979-06-05 1980-06-04 Sicherheitszündvorrichtung für ein Brennerventil Expired EP0020280B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400797T ATE3329T1 (de) 1979-06-05 1980-06-04 Sicherheitszuendvorrichtung fuer ein brennerventil.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7914276 1979-06-05
FR7914276A FR2458755A1 (fr) 1979-06-05 1979-06-05 Dispositif d'allumage de securite destine a une valve pour bruleur

Publications (2)

Publication Number Publication Date
EP0020280A1 EP0020280A1 (de) 1980-12-10
EP0020280B1 true EP0020280B1 (de) 1983-05-11

Family

ID=9226214

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400797A Expired EP0020280B1 (de) 1979-06-05 1980-06-04 Sicherheitszündvorrichtung für ein Brennerventil

Country Status (6)

Country Link
US (1) US4382773A (de)
EP (1) EP0020280B1 (de)
JP (1) JPS5649818A (de)
AT (1) ATE3329T1 (de)
DE (1) DE3063087D1 (de)
FR (1) FR2458755A1 (de)

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Publication number Priority date Publication date Assignee Title
JPS58119515A (ja) * 1982-01-05 1983-07-16 Hitachi Plant Eng & Constr Co Ltd 空気輸送装置
JPS58151125U (ja) * 1982-04-06 1983-10-11 三興空気装置株式会社 セラ−タンクの送出室
JPS597623A (ja) * 1982-07-05 1984-01-14 Sanko Kuki Sochi Kk 空気輸送装置
JPS6013670A (ja) * 1983-06-21 1985-01-24 日本物流株式会社 粉粒体輸送用フレキシブルコンテナ
JPS6013671A (ja) * 1983-06-30 1985-01-24 新日本製鐵株式会社 粉粒体供給ホツパ−
JPS61174029A (ja) * 1985-01-29 1986-08-05 Amano Corp 粉粒体用高圧輸送方法及び装置
US6116230A (en) 1992-03-23 2000-09-12 Convenience Technologies, Inc. Microprocessor-controlled gas appliance utilizing a single electrode spark ignition system and a pulse width modulated proportional valve
US6880493B2 (en) * 1992-03-23 2005-04-19 Todd W. Clifford Gas water heater and method of operation
FR2690732B1 (fr) * 1992-04-29 1998-02-20 Christian Langlais Perfectionnement aux panneaux radiants a gaz.
US5896818A (en) * 1996-08-19 1999-04-27 Phillips; Stewart A. Modular pallet to absorb lifting force
BR0212611A (pt) 2001-09-19 2004-08-17 Pharmacia Corp Compostos de pirazolila substituìdos para o tratamento da inflamação
DE102010019960B4 (de) * 2010-05-05 2012-09-13 Mertik Maxitrol Gmbh & Co. Kg Gasregelarmatur
US9410525B2 (en) 2013-08-07 2016-08-09 Denso International America, Inc. Valve controlled combustion system

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Publication number Priority date Publication date Assignee Title
US2607406A (en) * 1948-05-04 1952-08-19 Robertshaw Fulton Controls Co Ignition and control system for fuel burners
US2720614A (en) * 1950-07-08 1955-10-11 Gen Controls Co Flame safety electronic control
US3034571A (en) * 1957-04-29 1962-05-15 Penn Controls Control apparatus
US3191661A (en) * 1963-04-11 1965-06-29 Itt Electric ignition gas control system
DE1974605U (de) * 1967-04-27 1967-12-14 Bosch Gmbh Robert Gluehzuendkerze fuer heizgeraete.
DE1551949B2 (de) * 1967-12-05 1971-04-08 Danfoss A/S, Nordborg (Danemark) Kombinierte zuend und flammenwaechtervorrichtung
US3584988A (en) * 1969-06-24 1971-06-15 Texas Instruments Inc Electrothermal furnace control
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FR2178756B1 (de) * 1972-04-05 1974-08-02 Mecanique Ste B Urguigno
JPS54625B2 (de) * 1972-08-09 1979-01-12
US3949273A (en) * 1974-06-20 1976-04-06 Sundstrand Corporation Burner ignition system
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JPS5358781U (de) * 1976-10-15 1978-05-19
JPS54625U (de) * 1977-06-04 1979-01-05

Also Published As

Publication number Publication date
DE3063087D1 (en) 1983-06-16
EP0020280A1 (de) 1980-12-10
JPS5649818A (en) 1981-05-06
JPS6367099B2 (de) 1988-12-23
FR2458755B1 (de) 1984-03-23
FR2458755A1 (fr) 1981-01-02
ATE3329T1 (de) 1983-05-15
US4382773A (en) 1983-05-10

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