EP0111609B1 - Entzündungs- und Speisevorrichtung für Gasradiatoren - Google Patents

Entzündungs- und Speisevorrichtung für Gasradiatoren Download PDF

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Publication number
EP0111609B1
EP0111609B1 EP82402282A EP82402282A EP0111609B1 EP 0111609 B1 EP0111609 B1 EP 0111609B1 EP 82402282 A EP82402282 A EP 82402282A EP 82402282 A EP82402282 A EP 82402282A EP 0111609 B1 EP0111609 B1 EP 0111609B1
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EP
European Patent Office
Prior art keywords
radiator
gas
pressure
pilot light
safety valve
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
EP82402282A
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English (en)
French (fr)
Other versions
EP0111609A1 (de
Inventor
Joseph Sirand
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.)
Centre dEtude et de Realisations dEquipment et de Materiel CEREM
Original Assignee
Centre dEtude et de Realisations dEquipment et de Materiel CEREM
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 Centre dEtude et de Realisations dEquipment et de Materiel CEREM filed Critical Centre dEtude et de Realisations dEquipment et de Materiel CEREM
Priority to EP82402282A priority Critical patent/EP0111609B1/de
Priority to AT82402282T priority patent/ATE29922T1/de
Priority to DE8282402282T priority patent/DE3277387D1/de
Publication of EP0111609A1 publication Critical patent/EP0111609A1/de
Application granted granted Critical
Publication of EP0111609B1 publication Critical patent/EP0111609B1/de
Expired legal-status Critical Current

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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
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/12—Radiant burners
    • F23D14/14—Radiant burners using screens or perforated plates
    • F23D14/147—Radiant burners using screens or perforated plates with perforated plates as radiation intensifying means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
    • F23N5/105—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/22—Pilot burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2237/00—Controlling
    • F23N2237/20—Controlling one or more bypass conduits

Definitions

  • the invention relates to a system for igniting and supplying gas radiators. It can in particular be applied to infrared heaters and be used in particular in the agricultural sector for heating livestock buildings.
  • Known ignition and supply systems for gas radiators generally include a central distribution and control panel, which is connected by gas pipes and by electric cables to the various members which equip each injector radiator of the burner, pilot light. , safety valve, electromechanical equipment associated with the latter and, where applicable, spark gap or electrical ignition resistance.
  • known systems also have the defect of requiring on each radiator the presence of an electromechanical device which acts on the safety valve to keep it open during ignitions in order to authorize the arrival of gas to the burner at the time of ignition.
  • an electromechanical device which acts on the safety valve to keep it open during ignitions in order to authorize the arrival of gas to the burner at the time of ignition.
  • the presence of such an apparatus which must be electrically supplied further increases the complexity of the installation.
  • the present invention proposes to remedy the shortcomings of known systems, by providing a system whose connections between central station and radiators are significantly simplified.
  • a first objective of the invention consists in particular in ensuring the ignition and supply of each radiator under the same safety conditions as the known systems, and this, with a single gas pipe between the central station and the radiator considered .
  • Another objective of the invention is to reduce the electrical connections between central station and radiator, to a simple two-conductor cable in the case of a system provided with a spark gap or an ignition resistor, or even completely remove these connections in the case of a system devoid of such ignition devices (the first ignition being carried out manually and the re-ignitions being carried out by means of the pilot).
  • Another objective of the invention is to authorize a modulation of the heating regime of each radiator as a function of temperature setpoints.
  • Another objective is to ensure, in the event of a power failure, an instantaneous re-ignition of the radiator if the latter is in automatic shutdown period or a maintenance of the latter in the on state if it is already in this state at the time of the failure.
  • Another objective is to provide an improved pilot light, particularly well suited to infrared type radiators.
  • the system according to the invention makes it possible to provide, as means of transporting the gas, a single pipe connecting the upstream distribution means (located in particular on a central control panel) and the safety valve inlet (integral with the radiator).
  • the pilot light is supplied through the aforementioned bypass which includes the upstream regulator means: the gas supplied by the aforementioned single pipe has insufficient pv pressure to open the selective valve located upstream of the radiator burner and is directed to the pilot through the pilot duct.
  • the downstream pressure reducing means reduce the pressure at the pilot to an appropriate value.
  • the upstream distribution means comprise at least two branches in parallel, each provided with a controlled valve and with a regulator, the regulators of different branches having different outlet pressures in the range Pi mentioned above, however that the controlled valves are slaved to thermostatic members, in order to ensure heating regimes depending on a detected temperature.
  • controlled valve is meant both solenoid valves controlled by thermostats and any other equivalent member such as, in particular, thermostatic valves with expandable fluid, controlled by fluid capsules connected to said taps by capillary conduits.
  • one of said solenoid valves is of the solenoid valve type which is open without voltage, so as to authorize the distribution of gas in heating mode, in the event of a power failure.
  • the invention applies both to systems without an electrical automatic ignition member and to systems provided with such members (spark gap, electrical resistance, etc.).
  • the ignition branch delivers, at the inlet of the valve safety, gas at an increased pressure Pa> S, which causes the opening of this valve.
  • the radiator burner is then supplied with gas and can ignite under the action of the electrical ignition element (spark gap, resistance ).
  • the valve flap is kept open by its holding member (thanks to the temperature detector - thermocouple or other - which is located in the pilot flame); the heating regimes which correspond to pressures Pi lower than the opening threshold S of the valve, can thus be established, while ensuring safety in the event of the pilot light going out.
  • the pilot light associated with each radiator can be constituted, in accordance with an advantageous embodiment, by an infrared mini-transmitter incorporated in said radiator.
  • the gas radiator can be of any known type.
  • the system according to the invention essentially comprises two sets, a set 2 arranged at the location of the radiator and composed of members secured to it and a set composed of members grouped together on a central control panel 3.
  • These two assemblies which in certain livestock buildings can be separated by several hundred meters, are connected by a single pipe 4 for conveying gas and by an electric cable 5 with two conductors.
  • the central control panel 3 comprises upstream distribution means 6 which are connected to a gas inlet valve 7 with a view to delivering the gas in heating mode, at several pressures Pi (P1, P2, ...) to the inlet of the pipe 4 (in the example, the inlet pressure at the tap 7 is assumed to be equal to a value Pa greater than the maximum value of the pressures Pi, a booster / regulator 34 may be provided for this purpose).
  • upstream distribution means 6 are composed of several branches in parallel (two, three or more) which each include a solenoid valve such as 8 or 9 and a regulator such as 10 or 11, reducing the inlet pressure to the pressure Pi of the branch considered.
  • the regulators 10, 11 are adapted so that the pressures Pi have different values in order to allow different heating regimes.
  • the solenoid valves 8, 9 are slaved to thermostats such as 12 or 13, which control the opening or closing depending on a detected temperature.
  • One of the solenoid valves for example solenoid valve 8, is a solenoid valve open when de-energized, while the others are solenoid valves closed when de-energized.
  • the upstream distribution means 6 described above are shunted by said upstream pressure reducing means, which are constituted by a pressure reducer 14 disposed on a bypass 15.
  • This pressure reducer 14 is adapted to deliver a pressure pv lower than the minimum value of the pressures Pi heating regimes.
  • a so-called ignition branch 16 is arranged as a by-pass of the means described above in order to be able to deliver the gas to the inlet of the pipe 4, at the pressure Pa greater than the maximum value of the pressures Pi of the heating regimes.
  • the pressure Pa is assumed to be the inlet pressure of the gas and the ignition branch 16 comprises a solenoid valve 17, of the closed voltage-free type, which is electrically connected to a timed electric igniter 18 of a type known per se. .
  • This timed igniter 18 is intended to supply electrically through the conductors 5 a spark gap 19 (or any other similar member) disposed at the level of the radiator 1.
  • This electrical supply which takes place during a given period of time is triggered either manually by action on a manual button 18 'either automatically by a thermostatic action or under the influence of any other external order.
  • the igniter 18 simultaneously controls the opening of the solenoid valve 17, in synchronism with the supply of the spark gap 19, this solenoid valve 17 being closed at any other time.
  • the inlet of the safety valve 20 is connected to the pipe 4 and its outlet is connected to a pipe 22 for injecting gas into the burner of the radiator 1.
  • the capsule or pneumatic cylinder 20a is connected, by a branch 23, at the inlet of the valve 20, so that it is the gas which arrives towards the latter which acts on said capsule.
  • Said capsule is adjusted so that its triggering threshold S is greater than the maximum value of the pressures Pi and less than the pressure Pa: Pi ⁇ S ⁇ Pa.
  • valve 20 is provided with a manual button 20b which makes it possible to manually generate the opening of its valve.
  • the injection pipe 22 includes a selective valve 24 of the type which can be operated by the gas passing through it; this valve is calibrated so as to open from a pressure threshold s greater than the pressure pv (supplied by bypass 15) and less than the minimum value of the pressures Pi of the heating regimes: pv ⁇ s ⁇ Pi .
  • a conduit 25 which brings the gas pressure to a suitable constant value 27 (at most equal to the pressure pv, to within the pressure drop).
  • the pilot is a conventional type pilot flame, with which the thermocouple 21 of the safety valve 20 is associated.
  • the gas is then distributed at the pressure Pa through the branch 16; it generates the opening of the safety valve 20 (Pa> S) and is routed on the one hand, through the injection pipe 24 to the radiator burner (Pa> s), on the other hand, through the pipe from pilot 25 to pilot 27 at the appropriate pressure.
  • the safety valve 20 is kept open by the thermostat 21 as long as the pilot remains on; the latter is supplied through the branch 15.
  • the appropriate heating regime is obtained by opening one of the solenoid valves 8, 9 .... which distributes the gas at the appropriate pressure Pi.
  • the burner is supplied with gas through the safety valve 20 (kept open) and the selective valve 24 (Pi> s).
  • An automatic burner shutdown may occur if the temperature setpoints cause all of the heaters to close. solenoid valves 8, 9 ... The pilot remains on, the gas which feeds it being directed towards it due to the closing of the selective valve 24 (pv ⁇ s).
  • a re-ignition will take place through said pilot if a heating regime Pi is again conditioned by opening one of the valves 8, 9 ...
  • the solenoid valve 8 open when de-energized, opens and the burner is supplied with power during the fault, whatever its speed at the start of the fault.
  • the safety valve 20 closes immediately by the action of the thermocouple 21 and the gas distribution is stopped; a new action of the igniter 18 will be required to generate a new ignition as previously described.
  • Figure 2 shows, in partial view, a system similar to the previous one, but with an improved pilot; to facilitate understanding, we have used in this figure references identical to those of the previous figure to designate the same elements.
  • the radiator 1 is an infrared radiator conventionally composed of a combustion chamber 1a, a radiant plate 1b, an air inlet filter 1c connected by a duct 1d to the chamber 1a and a gas injector 1e.
  • Such a pilot light works like an infrared radiator and makes it possible to further simplify the system while improving its operating conditions (reduction of the risks of accidental extinction of the pilot light). It can if necessary be adapted to constitute a light source of low intensity playing the role of light pilot.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Feeding And Watering For Cattle Raising And Animal Husbandry (AREA)

Claims (14)

1. Zündungs- und Versorgungssystem für Infrarot-Gasheizungen, bestehend aus:
- als "oberdruckseitige Versorgungsmittel" bezeichneten Mitteln (6) zum Anschluß an eine Gaszufuhrleitung, um Gas in einem den Heizstufen entsprechenden Druckbereich Pi zuzuführen;
- einem in der Nähe des Heizkörpers (1) angebrachten Sicherheitsventil (20), dessen Ausgang durch eine Gaseinspeisungsleitung (22) mit dem Heizkörper verbunden ist und welches eine Einrichtung besitzt, die seine Ventilklappe in geöffneter Stellung hält und über einen Temperaturfühler (21) gesteuert wird;
- einer am Heizkörper befindlichen Dauerzündflamme (27), die seine erneute Zündung ermöglicht und mit dem Temperaturfühler (21) in Verbindung steht, so daß das Sicherheitsventil (20) offengehalten wird, wenn die Dauerzündflamme brennt;
- Gasbeförderungsmitteln (4) von den oberdruckseitigen Versorgungsmitteln (6) bis zum Eingang des Sicherheitsventils (20);
- oberdruckseitigen Mitteln zur Gasdruckminderung (14), die eine Umgehung der oberdruckseitigen Versorgungsmittel (6) bilden und dazu geeignet sind, am Eingang der Gasbeförderungsmittel (4) Gas mit einem Druck pv einzuspeisen, der unterhalb der den Heizstufen entsprechenden Drücke Pi liegt;
- einem Wahlventil (24), das an der Gaseinspeisungsleitung (22) zwischen dem Sicherheitsventil (20) und dem Heizkörper (1) angebracht und so ausgelegt ist, daß es bei dem Druckbereich Pi entsprechenden oder höheren Drücken geöffnet und beim Druck pv geschlossen ist;
- einer parallel zur Gaseinspeisungsleitung (22) vom Ausgang des Sicherheitsventils (20) ausgehenden "Dauerzündflammenleitung" (25), die das Sicherheitsventil mit der Dauerzündflamme (27) verbindet und mit niederdruckseitigen Mitteln zur Gasdruckminderung (26) versehen ist, die den Druck im Bereich der Zündflamme auf einen in etwa konstanten Wert verringern;

dadurch gekennzeichnet, daß die Dauerzündflamme jedes Infrarot-Heizgerätes von einem in diesem Gerät eingebauten Mini-Infrarotstrahler gebildet wird.
2. System gemäß Anspruch 1 zur Zündgung und Versorgung von Infrarot-Heizgeräten, jedes bestehend aus einer Brennkammer (1a), einer wärmeabstrahlenden Platte (1 b) und einem Lufteinlaßfilter (1c) zur Brennkammer hin, dadurch gekennzeichnet, daß sich der als Dauerzündflamme dienende Mini-Infrarotstrahler zusammensetzt aus:.
- einer in der Kammer (1a) des Infrarot- Heizgerätes enthaltenen kleinen Brennkammer (28), die von dieser durch eine Trennwand (29) getrennt ist und in welche die Dauerzündflammenleitung (25) mündet;
- einer kleinen wärmeabstrahlenden Platte (30), gebildet von einem Teil der wärmeabstrahlenden Platte (1b) des Infrarot-Heizgerätes.
3. Zündungs- und Versorgungssystem gemäß Anspruch 2, dadurch gekennzeichnet, daß der als Dauerzündflamme dienende Mini-Infrarotstrahler eine Luftversorgung seiner kleinen Brennkammer (28) besitzt, gebildet von einem Filterbereich (31) des Lufteinlaßfilters (1c) und durch eine Trennwand (32) abgetrennt.
4. Zündungs- und Versorgungssystem gemäß einem der Ansprüche 1, oder 3, bei dem:
- die oberdruckseitigen Versorgungsmittel (6), die oberdruckseitigen Mittel zur Druckminderung (14) und gegebenenfalls der verzögerte elektrische Zünder (18) und die Zündleitung (16) auf einer zentralen Bedientafel (3) zusammengefasst sind;
- das Sicherheitsventil (20), das Wahlventil (24), die Dauerzündflamme (27), die damit verbundenen niederdruckseitigen Mittel zur Druckminderung (26) und gegebenenfalls die elektrische Zündvorrichtung (19) eine Einheit (2) auf dem Heizkörper (1) bilden;
- diese Einheit (2) mit der zentralen Bedientafel (3) durch eine einzige Gasleitung (4) und gegebenenfalls durch ein elektrisches Kabel (5) verbunden ist.
5. Zündungs- und Versorgungssystem gemäß einem der Ansprüche 1, 2, 3 oder 4, bei dem die Gasbeförderungsmittel aus einer einzigen Rohrleitung (4) bestehen, die die oberdruckseitigen Versorgungsmittel (6) und den Eingang des Sicherheitsventils (20) verbindet.
6. Zündungs- und Versorgungssystem gemäß einem der vorstehenden Ansprüche, ausgestattet mit:
- einem verzögerten elektrischen Zünder (18), der die Aktion einer am Heizkörper (1) angebrachten elektrischen Zündvorrichtung (19) steuert;
- einer "Zündleitung" genannten Zweigleitung (16), die eine Umgehung der oberdruckseitigen Versorgungsmittel (6) bildet und am Eingang der Gasbeförderungsmittel (4) Gas mit einem über den Drücken Pi liegenden Druck Paliefert, sobald die elektrische Zündvorrichtung (19) betätigt wird;
- einem Sicherheitsventil (20) mit Mitteln zum Öffnen seiner Ventilklappe, die diese oberhalb einer Druckgrenze S öffnen, wobei Pi < S < Pa.
EP82402282A 1982-12-14 1982-12-14 Entzündungs- und Speisevorrichtung für Gasradiatoren Expired EP0111609B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP82402282A EP0111609B1 (de) 1982-12-14 1982-12-14 Entzündungs- und Speisevorrichtung für Gasradiatoren
AT82402282T ATE29922T1 (de) 1982-12-14 1982-12-14 Entzuendungs- und speisevorrichtung fuer gasradiatoren.
DE8282402282T DE3277387D1 (en) 1982-12-14 1982-12-14 Ignition and feeding device for gas radiators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82402282A EP0111609B1 (de) 1982-12-14 1982-12-14 Entzündungs- und Speisevorrichtung für Gasradiatoren

Publications (2)

Publication Number Publication Date
EP0111609A1 EP0111609A1 (de) 1984-06-27
EP0111609B1 true EP0111609B1 (de) 1987-09-23

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EP82402282A Expired EP0111609B1 (de) 1982-12-14 1982-12-14 Entzündungs- und Speisevorrichtung für Gasradiatoren

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EP (1) EP0111609B1 (de)
AT (1) ATE29922T1 (de)
DE (1) DE3277387D1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685447B1 (fr) * 1991-12-20 1998-01-02 Gaz De France Bruleur perfectionne a grille ainsi qu'installation de chauffage equipee d'un tel bruleur.
DE10112667C2 (de) * 2001-03-16 2003-11-27 Bosch Gmbh Robert Vorrichtung zum Zuführen von Gas bei einem Gas-Wassererhitzer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2509019A1 (fr) * 1981-07-01 1983-01-07 Sirand Joseph Systeme automatique d'allumage et de reallumage electro-pneumatique, de reallumage sans electricite, d'arret et de modulation du regime de chauffe de radiateurs a gaz

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731230A (en) * 1952-01-12 1956-01-17 Penn Controls Valve structure
US2944596A (en) * 1958-01-20 1960-07-12 Paul B Sagar Induced draft gas fired space heating system
FR2366518A1 (fr) * 1976-09-30 1978-04-28 Sirand Joseph Systeme de reallumage automatique et de modulation de regime de radiateurs a gaz

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2509019A1 (fr) * 1981-07-01 1983-01-07 Sirand Joseph Systeme automatique d'allumage et de reallumage electro-pneumatique, de reallumage sans electricite, d'arret et de modulation du regime de chauffe de radiateurs a gaz

Also Published As

Publication number Publication date
EP0111609A1 (de) 1984-06-27
DE3277387D1 (en) 1987-10-29
ATE29922T1 (de) 1987-10-15

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