EP1118816A2 - Poêle et dispositif pour ameliorer des caractéristiques de combustion d'une telle poêle - Google Patents

Poêle et dispositif pour ameliorer des caractéristiques de combustion d'une telle poêle Download PDF

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Publication number
EP1118816A2
EP1118816A2 EP01100799A EP01100799A EP1118816A2 EP 1118816 A2 EP1118816 A2 EP 1118816A2 EP 01100799 A EP01100799 A EP 01100799A EP 01100799 A EP01100799 A EP 01100799A EP 1118816 A2 EP1118816 A2 EP 1118816A2
Authority
EP
European Patent Office
Prior art keywords
control circuit
throttle
probe
valve member
furnace
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
EP01100799A
Other languages
German (de)
English (en)
Other versions
EP1118816B1 (fr
EP1118816A3 (fr
Inventor
Josef Tschirky
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.)
SPIESS AG
Original Assignee
Spiess Ofentechnik AG
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 Spiess Ofentechnik AG filed Critical Spiess Ofentechnik AG
Publication of EP1118816A2 publication Critical patent/EP1118816A2/fr
Publication of EP1118816A3 publication Critical patent/EP1118816A3/fr
Application granted granted Critical
Publication of EP1118816B1 publication Critical patent/EP1118816B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00—Stoves or ranges
    • F24B1/02—Closed stoves
    • F24B1/028—Closed stoves with means for regulating combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/06—Regulating fuel supply conjointly with draught
    • F23N1/062—Regulating fuel supply conjointly with draught using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F23N3/08—Regulating air supply or draught by power-assisted systems
    • F23N3/085—Regulating air supply or draught by power-assisted systems 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
    • F23N5/26—Details
    • 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
    • F23N2225/26—Measuring humidity
    • F23N2225/30—Measuring humidity measuring lambda
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/02—Air or combustion gas valves or dampers
    • F23N2235/04—Air or combustion gas valves or dampers in stacks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/02—Air or combustion gas valves or dampers
    • F23N2235/10—Air or combustion gas valves or dampers power assisted, e.g. using electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
    • F23N5/006—Systems for controlling combustion using detectors sensitive to combustion gas properties the detector being sensitive to oxygen

Definitions

  • the present invention relates to an oven and an apparatus for improving the Combustion properties of such an oven.
  • the furnace 1 shown in FIG. 1 comprises a furnace body 2 with a door 3 closing an inner combustion chamber and a device 4 with a so-called throttle 5.
  • the device 4 is connected to a chimney pipe 6, and the furnace body 2 and the device 4 are through a connecting pipe 7 for exhaust gases connected to each other.
  • the furnace 11 shown in FIG. 2 comprises a furnace body 12 with a door 13 closing an internal combustion chamber and a device 14 with a throttle 15.
  • the device 14 is connected to a chimney pipe 16, and the furnace body 12 and the device 14 are through connecting pipes 17 and 17 'for exhaust gases connected to a so-called heat box 18.
  • the furnace 21 shown in FIG. 3 comprises a furnace body 22 with a door 23 closing an internal combustion chamber and a device 24 with a throttle 25.
  • the device 24 is connected to a chimney pipe 26, and the furnace body 22 and the device 24 are through connecting pipes 27 and 27 'for exhaust gases connected to a so-called heat box 28.
  • the furnace body 2, 12, 22 in Figures 1 to 3 can be of known construction and any other elements not shown in the figures.
  • the heat box 18 and 28 (FIGS. 2, 3) can be, for example, a gas lintel box or a heat exchanger if necessary, for water or other purposes.
  • the throttle of the facilities 4, 14 and / or 24 has a valve member, for example a tiltable flap or a sliding plate, etc.
  • the device 40 according to FIG. 4 comprises a throttle 41 with a valve member, for example a flap 42, a motor or drive 43, a so-called lambda probe 44, a temperature probe 45 and a pressure probe 46.
  • the drive 43 can also be arranged, for example, coaxially with the flap 42.
  • the elements 44, 45 and 46 which are probes known per se, are preferably located directly below the throttle 41 and are provided in order to measure lambda values, temperature and pressure in the tube 47.
  • Lambda probes are sensors that compare the oxygen content in the exhaust gas with a reference value, for example with the oxygen content in the outside air.
  • the drive 43 can be a stepper motor, a linear motor, a servomotor, an actuator, a servomechanism, etc.
  • the drive 43 and the probes 44, 45 and 46 are connected to a control arrangement 50 (FIG. 5) .
  • the furnace according to the invention can also work with only one of the probes 44 and / or 45 and / or 46.
  • the control arrangement 50 according to FIG. 5 comprises an amplifier circuit 51, a linearizer 52 and a control circuit 53, which is preferably a commercially available programmable control unit provided with a display 54, for example of the PLC type.
  • the linearizer 52 can also be omitted.
  • the device according to the invention comprises at least the control circuit 53 provided for the purpose of the present invention.
  • the furnaces according to the invention with the device according to FIG. 4 operate as follows: One of the probes 44, 45 and / or 46, which are located in the devices 4, 14 and 24, measures a corresponding parameter. If a lambda value is preferably measured using a commercially available lambda probe, it supplies a voltage, for example in the range from -10 to 30 mV, which amplifier 51 preferably amplifies in a range from 0 to 10 volts. If necessary, a region of interest of the corresponding function can be linearized by the linearizer 52.
  • the control circuit 53 constantly receives the instantaneous voltage value ⁇ (t) obtained in this way and compares it with an upper limit value Lo.
  • the control circuit 53 supplies a trigger signal Sgo (FIG. 6) to the motor 43 such that it closes the flap 42 step by step or continuously, for example by an angle ⁇ um per second.
  • Sgo (FIG. 6)
  • the control circuit 53 supplies a trigger signal Sgu to the motor 43 such that it opens the flap step by step or continuously.
  • the current lambda value will always be within the two threshold values Lo and Lu.
  • the values for Lo and Lu can be determined experimentally for each furnace type.
  • the signals Sgo and Sgu can be the same or similar, with another signal Sd and / or Sd 'being provided as a criterion for the direction of movement of the drive 43.
  • the control circuit 53 can supply a further trigger signal Sgm if the current lambda value ⁇ (t) falls below or exceeds a medium limit value Lm such that the motor 43 then stops and the flap 42 remains in the position reached.
  • the signal supplied by the temperature probe 45 is intended as a switch-on criterion for the control circuit 53 are used to control the lambda, especially at the beginning when the open is cold do not switch on immediately as long as the temperature has an upper limit To for example between 100 ° and 300 °, preferably not between 110 ° and 130 ° Has. It is also a lower temperature limit Tu, for example of the order of magnitude of 100 ° is provided to switch off the lambda control.
  • the door 3 is designed such that when it is open, a door switch is activated, which the Flap 42 opens, a lamp 55 flashing and / or an acoustic signal at the same time Alarm is actuated for a predetermined time and / or a corresponding one in the display
  • the display appears.
  • the lambda values and the temperature and / or the pressure can be shown in the display. If the door 3 is closed again, this will result in an immediate or if necessary a delayed switch-on of the control. Will after a while De, for example after 20 minutes, the temperature limit To is not reached this is also evaluated as a special alarm, also optically and / or acoustically and / or in the display.
  • the device additionally includes a changeover switch 56 manual operation or automatic operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Solid-Fuel Combustion (AREA)
  • Feeding And Controlling Fuel (AREA)
EP01100799A 2000-01-21 2001-01-15 Poêle et dispositif pour ameliorer des caractéristiques de combustion d'une telle poêle Expired - Lifetime EP1118816B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00119/00A CH694380A5 (de) 2000-01-21 2000-01-21 Ofen für feste Brennstoffe.
CH119002000 2000-01-21

Publications (3)

Publication Number Publication Date
EP1118816A2 true EP1118816A2 (fr) 2001-07-25
EP1118816A3 EP1118816A3 (fr) 2003-12-03
EP1118816B1 EP1118816B1 (fr) 2007-12-12

Family

ID=4378165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01100799A Expired - Lifetime EP1118816B1 (fr) 2000-01-21 2001-01-15 Poêle et dispositif pour ameliorer des caractéristiques de combustion d'une telle poêle

Country Status (4)

Country Link
EP (1) EP1118816B1 (fr)
AT (1) ATE380980T1 (fr)
CH (1) CH694380A5 (fr)
DE (1) DE50113357D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1462723A2 (fr) * 2003-03-25 2004-09-29 Kutzner + Weber GmbH Système d'échappement pour foyer à combustible solide
EP1698828A3 (fr) * 2005-02-28 2009-11-25 Kutzner + Weber GmbH Installation de combustion, en particulier système de réglage d'une installation de combustion selon ses conditions de ventilation ou d'échappement de gaz de combustion
WO2010057929A1 (fr) * 2008-11-18 2010-05-27 Bodart Et Gonay Foyer ferme et procede de regulation
WO2022248386A1 (fr) * 2021-05-27 2022-12-01 Karl Schräder Nachf. Inh. Karl-Heinz Schräder e.K. Dispositif d'épuration des gaz de fumée d'un foyer à combustible bois

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4846400A (en) * 1988-04-12 1989-07-11 Crouse Scott L Method of and apparatus for automatic damper control
CH673699A5 (en) * 1986-09-12 1990-03-30 Tiba Kochherd & App Ag Combustion air regulation system for solid fuel boiler - with separate regulation of total quantity of air and primary secondary air ratio
EP0409790A1 (fr) * 1989-07-19 1991-01-23 Willi Hager Installation de combustion
EP0604388A1 (fr) * 1992-12-22 1994-06-29 Kurt Pfisterer Dispositif de réglage de l'alimentation d'air comburant pour un foyer
AT405565B (de) * 1998-04-17 1999-09-27 Kaschuetz Ges M B H Vorrichtung zur regelung der verbrennungsluftzufuhr bei einem ofen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH673699A5 (en) * 1986-09-12 1990-03-30 Tiba Kochherd & App Ag Combustion air regulation system for solid fuel boiler - with separate regulation of total quantity of air and primary secondary air ratio
US4846400A (en) * 1988-04-12 1989-07-11 Crouse Scott L Method of and apparatus for automatic damper control
EP0409790A1 (fr) * 1989-07-19 1991-01-23 Willi Hager Installation de combustion
EP0604388A1 (fr) * 1992-12-22 1994-06-29 Kurt Pfisterer Dispositif de réglage de l'alimentation d'air comburant pour un foyer
AT405565B (de) * 1998-04-17 1999-09-27 Kaschuetz Ges M B H Vorrichtung zur regelung der verbrennungsluftzufuhr bei einem ofen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1462723A2 (fr) * 2003-03-25 2004-09-29 Kutzner + Weber GmbH Système d'échappement pour foyer à combustible solide
EP1462723A3 (fr) * 2003-03-25 2011-07-06 Kutzner + Weber GmbH Système d'échappement pour foyer à combustible solide
EP1698828A3 (fr) * 2005-02-28 2009-11-25 Kutzner + Weber GmbH Installation de combustion, en particulier système de réglage d'une installation de combustion selon ses conditions de ventilation ou d'échappement de gaz de combustion
WO2010057929A1 (fr) * 2008-11-18 2010-05-27 Bodart Et Gonay Foyer ferme et procede de regulation
WO2022248386A1 (fr) * 2021-05-27 2022-12-01 Karl Schräder Nachf. Inh. Karl-Heinz Schräder e.K. Dispositif d'épuration des gaz de fumée d'un foyer à combustible bois

Also Published As

Publication number Publication date
EP1118816B1 (fr) 2007-12-12
ATE380980T1 (de) 2007-12-15
DE50113357D1 (de) 2008-01-24
CH694380A5 (de) 2004-12-15
EP1118816A3 (fr) 2003-12-03

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