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EP0550055B1 - Procédé pour surveiller un dispositif de chauffage - Google Patents

Procédé pour surveiller un dispositif de chauffage Download PDF

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Publication number
EP0550055B1
EP0550055B1 EP92122091A EP92122091A EP0550055B1 EP 0550055 B1 EP0550055 B1 EP 0550055B1 EP 92122091 A EP92122091 A EP 92122091A EP 92122091 A EP92122091 A EP 92122091A EP 0550055 B1 EP0550055 B1 EP 0550055B1
Authority
EP
European Patent Office
Prior art keywords
burner
counter
heater
output
decoder
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 - Lifetime
Application number
EP92122091A
Other languages
German (de)
English (en)
Other versions
EP0550055A1 (fr
Inventor
Achim Burgdorf
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.)
VAILLANT B.V.
Vaillant Austria GmbH
Vaillant NV
Vaillant GmbH
Vaillant AS
Vaillant SARL
Vaillant Ltd
Original Assignee
Vaillant Austria GmbH
Vaillant NV
Joh Vaillant GmbH and Co
Vaillant GmbH
Vaillant AS
Vaillant SARL
Vaillant Ltd
Vaillant BV
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 Vaillant Austria GmbH, Vaillant NV, Joh Vaillant GmbH and Co, Vaillant GmbH, Vaillant AS, Vaillant SARL, Vaillant Ltd, Vaillant BV filed Critical Vaillant Austria GmbH
Publication of EP0550055A1 publication Critical patent/EP0550055A1/fr
Application granted granted Critical
Publication of EP0550055B1 publication Critical patent/EP0550055B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F23N1/002—Regulating fuel supply using electronic 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
    • F23N5/022—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using electronic 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
    • F23N5/242—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
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/22—Timing network
    • F23N2223/28—Timing network with more than one timing element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • F23N2225/10—Measuring temperature stack temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • F23N2225/13—Measuring temperature outdoor temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/32—Igniting for a predetermined number of cycles

Definitions

  • the invention relates to a method for operating a safety device for a heater provided with a burner according to the introductory part of the Claim.
  • a fuel-heated heat source has become known is equipped with three temperature sensors.
  • the first temperature sensor is immediately on Exhaust outlet of the heat exchanger, the second at the outlet of the flow control to Exhaust pipe, that is, downstream of the space outlet openings of the flow safety device, and the third Heat exchanger is in the area of this outlet opening in the installation room Heat source.
  • the temperature values of these three temperature sensors are evaluated in order to put the heat source out of operation in the critical case.
  • There is a binary counter for this provided that can be blocked or released. Are the measured values of the Temperature sensors documenting a stable combustion situation within a certain range Limits, corresponding comparators block the inputs of the binary counter, so that it cannot process signals.
  • EP 282 644 A2 describes an automatic burner control for a fuel-heated one Heat source has become known, which also has a counter, the counter reading after a flame goes out and a new start attempt is made. As soon as the adjustable maximum value of the meter reading is reached or exceeded the heat source blocked.
  • the aim of the invention is to avoid the disadvantages described at the outset and to provide a method of the type mentioned at the outset and a device for carrying out the method according to the invention, in which, on the one hand, maintenance of the operation of the device is ensured even when a temporary malfunction occurs, and on the other hand the risk of excessive or dangerous concentration of CO and CO 2 in the installation room of a burner-heated heater is safely avoided.
  • the method according to the invention also reliably prevents that operation with disrupted exhaust gas routing will go unnoticed for a long time and this can endanger the user.
  • a heat exchanger 1 is acted on by a burner 2, the one with a gas line 3, in which a solenoid valve 4 is arranged, with fuel gas is available.
  • a conventional flow safety device 5 is located above the heat exchanger 1 arranged, which leads to an exhaust pipe 6.
  • a Temperature sensor 8 is arranged, which via a measuring line 9 with an evaluation circuit 10 connected is.
  • a pump 12 is arranged, which ensures the circulation of the heating water.
  • a monitoring electrode 14 is arranged, which has a Measuring line 15 is also connected to the evaluation circuit 10, which in turn the Solenoid coil 18 of the solenoid valve 4 is controlled via a line 17.
  • temperature sensors 19 and 22 are arranged, which are about Measuring lines 20 and 23 are connected to an exhaust gas sensor circuit 21, which are connected to the electronic evaluation circuit 10 via an output line 24 is.
  • the exhaust gas sensor circuit 21 evaluates the signals of the two temperature sensors 19, 22 a known algorithm and delivers the presence of an exhaust signal corresponding signal to the evaluation circuit 10.
  • FIG. 2 shows an evaluation circuit according to the invention.
  • the exhaust gas sensor circuit 21 has one input OR gate 30 and a differentiator 31, the latter being an inverter 32 is connected downstream, the output of which is connected to an OR gate 33, the second input is connected to the output of an inverter 34, the input of which a signal corresponding to the heat requirement of a flow temperature controller, not shown connected is.
  • the second input of the OR gate 30 is connected to the output Q x of a decoder 35, which is connected to the outputs of a counter 36.
  • the output of the OR gate 30 is connected to the control input of an oscillator 37, the output of which is connected to an input of a further AND gate 38, the negated further input of which is connected to the output Q x + N + 1 of the decoder 35 is connected.
  • the exits Q x + N + 1 and Q x of the decoder 35 are further connected to the inputs of an OR gate 39 with an inverting output, the output of which acts on the solenoid 18 of the solenoid valve 4. Furthermore, the output of the OR gate 39 is connected to an input of an AND gate 40, the second input of which is connected to the output of the OR gate 33.
  • the counter 36 In normal operation, the counter 36 is reset at the beginning of a heat request. In order to all the outputs of this counter 36 are at zero and the outputs of the decoder 35 are also to zero, so that the output of the inverting output OR gate 39 is "1" and the signal to release the burner to the rest Control and thus to a solenoid valve of the burner.
  • the exhaust gas sensor circuit 21 supplies a signal "1" as soon as the temperature sensors report an exhaust gas leak.
  • the output of the OR gate 30 thus also supplies a "1" signal to the control input of the oscillator 37, which then oscillates. Because the exit Q X + N + 1 still supplies a "0" signal, the oscillator signal is switched from the AND gate 38 to the clock input of the counter 36, which now counts the oscillations of the oscillator.
  • the decoder evaluates the status of the counter outputs.
  • the evaluation circuit 10 can therefore only by switching off the operating voltage, whereby the counter 36 is reset, and the operating voltage is switched on again be put back into operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Control Of Combustion (AREA)
  • Control Of Resistance Heating (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Electric Stoves And Ranges (AREA)

Claims (1)

  1. Procédé d'utilisation d'un dispositif de sécurité pour un appareil de chauffage muni d'un brûleur et dont la sortie des gaz brûlés dans la chaufferie est contrôlée par un analyseur de fumée (21), le dispositif de sécurité délivrant, sous l'effet d'un signal d'appel de chaleur, un signal de déblocage du brûleur pour mettre l'appareil de chauffage en marche, ledit dispositif de sécurité comprenant un compteur binaire (36) qui, au moment où il atteint un niveau déterminé, arrête définitivement le brûleur par suppression du signal de déblocage, procédé caractérisé par le fait que l'analyseur de fumée (21), au moment de réagir, lance un oscillateur (37) appliquant des impulsions au compteur binaire (36), un décodeur (35), coopérant avec le compteur binaire, réagissant, au moment où ledit compteur atteint un premier niveau (Qx), pour couper le signal de déblocage du brûleur, lequel est reproduit au moment où un deuxième niveau plus élevé défini par le décodeur (35) est atteint, ce qui se répète sous l'effet d'autres réactions de l'analyseur de fumée à des niveaux plus élevés définis par le décodeur jusqu'au moment où le brûleur est verrouillé définitivement lorsque le niveau défini (Qx + N + 1) est atteint, le compteur binaire étant également arrêté.
EP92122091A 1991-12-30 1992-12-29 Procédé pour surveiller un dispositif de chauffage Expired - Lifetime EP0550055B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT2568/91 1991-12-30
AT0256891A AT400756B (de) 1991-12-30 1991-12-30 Sicherheitseinrichtung zur überwachung eines heizgerätes
AT256891 1991-12-30

Publications (2)

Publication Number Publication Date
EP0550055A1 EP0550055A1 (fr) 1993-07-07
EP0550055B1 true EP0550055B1 (fr) 2000-01-26

Family

ID=3536617

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92122091A Expired - Lifetime EP0550055B1 (fr) 1991-12-30 1992-12-29 Procédé pour surveiller un dispositif de chauffage

Country Status (4)

Country Link
EP (1) EP0550055B1 (fr)
AT (2) AT400756B (fr)
DE (2) DE4244428C2 (fr)
ES (1) ES2143984T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1479984A1 (fr) * 2003-01-30 2004-11-24 Vaillant GmbH Procédé et apparail pour l'identification préventive d'érreurs avec dispositif regé électroniquement

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3020228C2 (de) * 1980-05-24 1984-08-09 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Sicherheitseinrichtung für brennstoffbeheizte Geräte
DE3925734A1 (de) * 1988-08-05 1990-02-08 Vaillant Joh Gmbh & Co Schaltung zur ueberwachung eines zeitgliedes
CH681039A5 (fr) * 1990-03-23 1992-12-31 Landis & Gyr Betriebs Ag

Also Published As

Publication number Publication date
ATA256891A (de) 1995-07-15
EP0550055A1 (fr) 1993-07-07
ES2143984T3 (es) 2000-06-01
DE4244428C2 (de) 2003-07-10
ATE189300T1 (de) 2000-02-15
AT400756B (de) 1996-03-25
DE59209803D1 (de) 2000-03-02
DE4244428A1 (fr) 1993-07-01

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