EP0548655A1 - Dispositif de chauffage - Google Patents

Dispositif de chauffage Download PDF

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Publication number
EP0548655A1
EP0548655A1 EP92120876A EP92120876A EP0548655A1 EP 0548655 A1 EP0548655 A1 EP 0548655A1 EP 92120876 A EP92120876 A EP 92120876A EP 92120876 A EP92120876 A EP 92120876A EP 0548655 A1 EP0548655 A1 EP 0548655A1
Authority
EP
European Patent Office
Prior art keywords
burner
temperature
circuit
threshold value
heating 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
EP92120876A
Other languages
German (de)
English (en)
Other versions
EP0548655B1 (fr
Inventor
Joachim Berg
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.)
Nv Vaillant Sa
VAILLANT B.V.
Vaillant Austria GmbH
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
Original Assignee
Joh Vaillant GmbH and Co
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 Joh Vaillant GmbH and Co filed Critical Joh Vaillant GmbH and Co
Publication of EP0548655A1 publication Critical patent/EP0548655A1/fr
Application granted granted Critical
Publication of EP0548655B1 publication Critical patent/EP0548655B1/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
    • 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
    • F23N2223/08—Microprocessor; Microcomputer
    • 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
    • F23N2225/21—Measuring temperature outlet temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • 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
    • F23N2235/14—Fuel valves electromagnetically operated
    • 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
    • F23N2237/00—Controlling
    • F23N2237/10—High or low fire

Definitions

  • the invention relates to a heating device with a burner acting on a heat exchanger and an exhaust pipe made of a combustible or only temperature-resistant material, in the connection area of which is arranged a safety temperature limiter to a combustion chamber receiving the burner which, when a certain temperature is exceeded, supplies the fuel to the Brenners influencing signal emits.
  • Exhaust systems or exhaust pipes for heating devices with low exhaust gas temperatures can be made entirely or partially of a flammable or only temperature-resistant material. It is only necessary to provide a safety temperature limiter that prevents the maximum permissible temperature of the exhaust pipe from being exceeded.
  • the safety temperature limiter is formed by a capillary thermal switch which switches the burner off when a certain limit temperature is reached.
  • the aim of the invention is to avoid these disadvantages and to propose a heating device of the type mentioned in the introduction, in which an exceeding of the respective limit value of the exhaust gas temperature is avoided.
  • the safety temperature limiter is formed by a temperature sensor arranged in the exhaust gas line and an evaluation circuit processing its signals, which has a threshold value circuit which, when the threshold value is exceeded, causes the burner to be switched off and comprises a control circuit which, when approaching one predefined threshold value emits a signal influencing the burner's output control in the sense of reducing the same.
  • the evaluation circuit comprises a selector switch for setting the threshold value of the threshold value circuit.
  • the setting of the threshold switch can be very easily matched to the permissible temperatures used for the exhaust pipe, whereby the same components can always be used, regardless of the materials used for the exhaust pipe.
  • the evaluation circuit has a microprocessor which also serves as a threshold circuit and to which the temperature sensor arranged in the exhaust gas line is connected on the input side via an analog-digital converter and an exhaust gas target value transmitter and on the output side with a fuel supply to the burner controlling solenoid valve is connected.
  • a temperature sensor for detecting the flow temperature of a heating system and a flow setpoint generator are connected on the input side in each case via analog-digital converters, the microprocessor on the output side optionally with a blower assigned to the burner via a digital -Analog converter is connected.
  • the heating device has a burner 2 which is arranged in a combustion chamber 1 and which is supplied with a fuel gas / air mixture via a blower 3 and a gas line 5 controlled by a solenoid valve 4.
  • a heat exchanger 6 is arranged above the burner 2 and is connected to a radiator device (not shown) via a feed line 7 and a return line 8 in which a pump 9 is arranged.
  • the air required for the blower 3 passes through an annular gap 11 surrounding an exhaust pipe 10 into the interior of the housing 12 and from there to the suction side of the blower 3.
  • a temperature sensor 13 is arranged, which is connected to an evaluation circuit 14 via a connecting line 20. This is also connected to a sensor 16 which detects the temperature of the feed water via a line 17.
  • the evaluation circuit 14 has a target exhaust gas value transmitter 15 for selecting a threshold value for the emission of a signal that prevents the fuel supply.
  • the evaluation circuit controls the blower 3 via the line 18 in order to influence the load on the burner 3 and, via a line 19, the solenoid valve 4, which controls the gas supply to the burner 2.
  • the evaluation circuit 14 has a microprocessor 21 which also serves as a threshold circuit and which, when the temperature value of the exhaust gas approaches the set threshold value, for example up to 10 ° C., has an output of the burner 2 reducing signal.
  • the evaluation circuit 14 has a microprocessor 21 which is connected to the sensor 13 which detects the temperature of the exhaust gas via an analog-digital converter 22. Furthermore, an exhaust gas target value transmitter 15, a sensor 16 which detects the temperature of the flow of a heating system (not shown further) and a flow target value transmitter 25 are each connected on the input side to the microprocessor 21 via analog / digital converter 22. On the output side, the microprocessor 21 is connected via digital-analog converter 23 to the blower 3 of the burner 2 and the solenoid valve 4, which controls the gas supply to the burner. A display 26 and a voltage supply 24 are also connected to the microprocessor 21.
  • the functional sequence of the evaluation circuit 14 is shown in FIG. 3.
  • the actual exhaust gas temperature T Aist which is detected by the sensor 13, the set maximum value of the exhaust gas temperature T Amax and the target value for the flow temperature T Vsoll are processed as input variables .
  • the instantaneous exhaust gas temperature T Aist is continuously compared with the set maximum exhaust gas temperature T Amax . If the difference between T Amax - T Aist is zero or negative, the maximum permissible exhaust gas temperature has been reached or exceeded. In this case, the burner 2 is locked.
  • the target specification for the flow temperature T Vsoll is reduced according to a predetermined algorithm until the safety margin to the switch-off value is restored.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Resistance Heating (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP92120876A 1991-12-12 1992-12-08 Dispositif de chauffage Expired - Lifetime EP0548655B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0246991A AT401569B (de) 1991-12-12 1991-12-12 Heizeinrichtung
AT2469/91 1991-12-12

Publications (2)

Publication Number Publication Date
EP0548655A1 true EP0548655A1 (fr) 1993-06-30
EP0548655B1 EP0548655B1 (fr) 1997-05-14

Family

ID=3534921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92120876A Expired - Lifetime EP0548655B1 (fr) 1991-12-12 1992-12-08 Dispositif de chauffage

Country Status (4)

Country Link
EP (1) EP0548655B1 (fr)
AT (2) AT401569B (fr)
DE (2) DE4242382A1 (fr)
DK (1) DK0548655T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0664421A1 (fr) * 1994-01-25 1995-07-26 Emerson Electric Co. Soupape de commande pour gaz
EP0892215A3 (fr) * 1997-07-18 2000-07-12 WEBASTO THERMOSYSTEME GmbH Procédé de commande de la protection de surchauffe pour un appareil de chauffage
GB2358915A (en) * 2000-02-02 2001-08-08 Smiths Group Plc Gas appliances and control systems
EP1130343A3 (fr) * 2000-02-02 2003-01-22 Vaillant GmbH Installation de chauffage

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325414C2 (de) * 1993-07-29 2000-02-17 Daimler Chrysler Ag Deformationssensor für eine Sicherheitseinrichtung zum Schutz von Fahrzeuginsassen bei einem Seitenaufprall
DE102021006085A1 (de) 2021-12-09 2023-06-15 Truma Gerätetechnik GmbH & Co. KG Vorrichtung zum Erwärmen von Luft
NO20230257A1 (no) * 2023-03-10 2024-05-27 Safi Brannsikring As System for tidlig detektering, varsling og forhindring av pipebrann

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1027863B (de) * 1955-12-07 1958-04-10 Vaillant Joh Kg Selbsttaetige Regelvorrichtung fuer Gas-Wasserheizer mit Waermetauscher
DE2500529A1 (de) * 1974-01-10 1975-07-17 Saunier Duval Sicherheitsvorrichtung fuer gas- durchlauferhitzer mit geringer leistung
US4296727A (en) * 1980-04-02 1981-10-27 Micro-Burner Systems Corporation Furnace monitoring system
FR2549204A1 (fr) * 1983-07-13 1985-01-18 Maillet Marcel Generateur d'air souffle a temperature constante

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2596501B1 (fr) * 1986-03-28 1990-04-27 Sdecc Dispositif de securite pour chaudiere a gaz du type a ventilation mecanique controlee
JPS63254315A (ja) * 1987-04-09 1988-10-21 Matsushita Electric Ind Co Ltd 温風暖房器の安全装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1027863B (de) * 1955-12-07 1958-04-10 Vaillant Joh Kg Selbsttaetige Regelvorrichtung fuer Gas-Wasserheizer mit Waermetauscher
DE2500529A1 (de) * 1974-01-10 1975-07-17 Saunier Duval Sicherheitsvorrichtung fuer gas- durchlauferhitzer mit geringer leistung
US4296727A (en) * 1980-04-02 1981-10-27 Micro-Burner Systems Corporation Furnace monitoring system
FR2549204A1 (fr) * 1983-07-13 1985-01-18 Maillet Marcel Generateur d'air souffle a temperature constante

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 462 (M-881)19. Oktober 1989 & JP-A-11 81 016 ( MATSUSHITA ELECTRIC ) 19. Juli 1989 *
PATENT ABSTRACTS OF JAPAN vol. 14, no. 221 (M-971)10. Mai 1990 & JP-A-20 52 917 ( HANADA YOSHIYUKI ) 22. Februar 1990 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0664421A1 (fr) * 1994-01-25 1995-07-26 Emerson Electric Co. Soupape de commande pour gaz
EP0892215A3 (fr) * 1997-07-18 2000-07-12 WEBASTO THERMOSYSTEME GmbH Procédé de commande de la protection de surchauffe pour un appareil de chauffage
GB2358915A (en) * 2000-02-02 2001-08-08 Smiths Group Plc Gas appliances and control systems
EP1130343A3 (fr) * 2000-02-02 2003-01-22 Vaillant GmbH Installation de chauffage

Also Published As

Publication number Publication date
EP0548655B1 (fr) 1997-05-14
DK0548655T3 (da) 1997-12-01
DE4242382A1 (fr) 1993-06-17
DE59208493D1 (de) 1997-06-19
ATE153122T1 (de) 1997-05-15
AT401569B (de) 1996-10-25
ATA246991A (de) 1996-02-15

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