EP1666794A1 - Luftsteuerung - Google Patents

Luftsteuerung Download PDF

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Publication number
EP1666794A1
EP1666794A1 EP05077717A EP05077717A EP1666794A1 EP 1666794 A1 EP1666794 A1 EP 1666794A1 EP 05077717 A EP05077717 A EP 05077717A EP 05077717 A EP05077717 A EP 05077717A EP 1666794 A1 EP1666794 A1 EP 1666794A1
Authority
EP
European Patent Office
Prior art keywords
fire bed
air
intensity
blow
scanning
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.)
Withdrawn
Application number
EP05077717A
Other languages
English (en)
French (fr)
Inventor
Johannes Hermanus Jacobs
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.)
NEM Energy Services BV
Original Assignee
NEM Energy Services 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 NEM Energy Services BV filed Critical NEM Energy Services BV
Publication of EP1666794A1 publication Critical patent/EP1666794A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/50—Control or safety arrangements
    • 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
    • F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
    • F23N5/082—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements using electronic means

Definitions

  • the invention relates to a method for controlling a fire bed.
  • incinerator waste is burned in a fire bed.
  • the flue gases from this fire bed are discharged into the open air via a chimney.
  • the flue gases contain a large quantity of carbon dioxide but, as a result of incomplete combustion, these flue gases also contain harmful substances, such as for instance carbon monoxide. It is of great importance in such incinerators that the quantity of harmful substances discharged into the outside air be kept as low as possible.
  • incinerators to blow in, at the fire bed, the air necessary for complete combustion.
  • This quantity of air is usually adapted to the amount of material to be burned.
  • the composition of the flue gases is measured, and the quantity of air to be blown onto the fire bed is determined on the basis hereof.
  • the fire bed is monitored, and, as soon as a zone is present in the fire bed where the combustion process is incomplete, a gas such as air is blown in at the position of this zone so as to ensure that sufficient air is available locally to bring about a complete combustion process, and whereby the amount of harmful substances is minimized.
  • the invention further comprises a device for controlling a fire bed in a combustion chamber, which device comprises:
  • the scanning means monitor whether the fire bed is homogeneous and, as soon as there is a peak in the fire bed, the blow-in means are actuated so as to blow in locally a gas such as air.
  • the scanning means comprise a matrix for optically detecting the intensity of the fire bed.
  • Sensors can here preferably comprise an optical fibre and a light-sensitive element connected thereto.
  • the blow-in means comprise a matrix of nozzles. Air can be blown in locally using these nozzles.
  • a highly preferred embodiment of the device according to the invention comprises a number of pipes which extend substantially horizontally above the fire bed and through which flows coolant, which pipes are connected to each other by separating walls to form a hollow element. Because a coolant flows through the pipes, the temperature in the hollow element is considerably lower than the temperature of the flue gases just outside the hollow elements.
  • the device according to the invention comprises a number of such hollow elements in which the scanning means and the blow-in means are arranged. Because the temperature in these hollow elements is low, it is still possible to place more sensitive equipment in the flue gases.
  • the hollow elements have a great width relative to the channel in which the elements are arranged, the further advantage is then achieved of a good mixing of the flue gases. Blowing-in of air also contributes thereto.
  • Figure 1 shows an incinerator with side walls 2, a fire grate 3 on which burning waste V is being incinerated. Above this grate 3 is placed a device according to the invention which consists of hollow elements 1. These hollow elements 1 are connected to side walls 2.
  • a hollow element 1 according to the invention is shown in more detail in figure 2.
  • Side walls 2 consist of pipes 4 and partitions 5.
  • a coolant runs through pipes 4 in order to thus hold the side walls at a reasonable temperature.
  • These pipes 4 are bent out of the plane of side wall 2 so that pipes 6 and 7 form together with separating walls 8 and 9 a hollow element.
  • Openings 10 are arranged in separating wall 9 through which air can for instance be blown, or behind which openings a sensor can for instance be placed.
  • Figure 3 shows a perspective view of two hollow elements placed opposite each other.
  • An opening 11 is provided through hollow elements 1 so that access is created to hollow elements 1 from outside side walls 2.
  • Air L can for instance be blown in or the cables for the sensors can run via this opening 11.
  • FIG 4 shows a top view of the whole device according to the invention.
  • This device consists of a lower layer of hollow elements 12 which at different points L1-L12 can blow in air directed at the fire bed, as shown in figure 1.
  • a second layer of hollow elements 13 which incorporate sensors.
  • These sensors S1-S12 detect the intensity of the fire bed lying thereunder.
  • sensor S2 detects an increased intensity of the fire bed, which means that the combustion is not complete and harmful substances are therefore being released
  • the control can blow in air via holes L1, L2, L5 and L6, whereby extra air is provided locally and whereby the combustion process can still be complete, so that the formation of harmful gases is reduced.
  • the hollow elements air is simultaneously blown out via two openings when the air is blown in. It is however also possible to provide valves, whereby blowing-in can take place more locally.
  • sensor S9 measures an increased fire intensity

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Incineration Of Waste (AREA)
EP05077717A 2004-12-06 2005-11-30 Luftsteuerung Withdrawn EP1666794A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1027661A NL1027661C2 (nl) 2004-12-06 2004-12-06 Luchtregeling.

Publications (1)

Publication Number Publication Date
EP1666794A1 true EP1666794A1 (de) 2006-06-07

Family

ID=34974659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05077717A Withdrawn EP1666794A1 (de) 2004-12-06 2005-11-30 Luftsteuerung

Country Status (2)

Country Link
EP (1) EP1666794A1 (de)
NL (1) NL1027661C2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014219113A (ja) * 2013-05-01 2014-11-20 株式会社タクマ 燃焼炉内の温度計測システムおよび燃焼炉の燃焼制御システム

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847092A (en) * 1973-12-10 1974-11-12 Combustion Eng Automatic bed level control for furnaces
US4621583A (en) * 1985-06-28 1986-11-11 Measurex Corporation System for controlling a bark-fired boiler
US4953477A (en) * 1988-07-29 1990-09-04 Martin Gmbh Fur Umwelt- Und Engerie-Technik Method and apparatus for regulating the furnace output of incineration plants
FR2661733A1 (fr) * 1990-05-04 1991-11-08 Perin Freres Ets Procede et dispositif de controle et de commande de la combustion d'un combustible solide qui se deplace en nappe dans un foyer.
EP0576955A2 (de) * 1992-06-19 1994-01-05 L. & C. Steinmüller GmbH Verfahren zum Regeln der Verbrennung von Brennstoff auf einem Rost einer Feuerungsanlage und Vorrichtung zur Durchführung des Verfahrens
EP0716266A1 (de) * 1994-12-05 1996-06-12 Gernot Dipl.-Ing. Dr. Staudinger Verfahren und Vorrichtung zum Regeln einer Rostfeuerung mit beweglichem Rost
US5606924A (en) * 1993-12-29 1997-03-04 Martin Gmbh Fuer Umwelt- Und Energietechnik Process for regulating individual factors or all factors influencing combustion on a furnace grate
DE19931111A1 (de) * 1999-07-06 2001-01-11 Electrowatt Tech Innovat Corp Vorrichtung zum Überwachen von Flammen mit einem Flammenfühler bzw. Flammendetektor (Flammenwächter) und Verwendung desselben
DE9321618U1 (de) * 1993-03-13 2001-03-01 Erk Eckrohrkessel Gmbh, 14199 Berlin Luftlanze zur Verwendung in Feuerräumen von Dampf- oder Heißwasserkesseln

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847092A (en) * 1973-12-10 1974-11-12 Combustion Eng Automatic bed level control for furnaces
US4621583A (en) * 1985-06-28 1986-11-11 Measurex Corporation System for controlling a bark-fired boiler
US4953477A (en) * 1988-07-29 1990-09-04 Martin Gmbh Fur Umwelt- Und Engerie-Technik Method and apparatus for regulating the furnace output of incineration plants
FR2661733A1 (fr) * 1990-05-04 1991-11-08 Perin Freres Ets Procede et dispositif de controle et de commande de la combustion d'un combustible solide qui se deplace en nappe dans un foyer.
EP0576955A2 (de) * 1992-06-19 1994-01-05 L. & C. Steinmüller GmbH Verfahren zum Regeln der Verbrennung von Brennstoff auf einem Rost einer Feuerungsanlage und Vorrichtung zur Durchführung des Verfahrens
DE9321618U1 (de) * 1993-03-13 2001-03-01 Erk Eckrohrkessel Gmbh, 14199 Berlin Luftlanze zur Verwendung in Feuerräumen von Dampf- oder Heißwasserkesseln
US5606924A (en) * 1993-12-29 1997-03-04 Martin Gmbh Fuer Umwelt- Und Energietechnik Process for regulating individual factors or all factors influencing combustion on a furnace grate
EP0716266A1 (de) * 1994-12-05 1996-06-12 Gernot Dipl.-Ing. Dr. Staudinger Verfahren und Vorrichtung zum Regeln einer Rostfeuerung mit beweglichem Rost
DE19931111A1 (de) * 1999-07-06 2001-01-11 Electrowatt Tech Innovat Corp Vorrichtung zum Überwachen von Flammen mit einem Flammenfühler bzw. Flammendetektor (Flammenwächter) und Verwendung desselben

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014219113A (ja) * 2013-05-01 2014-11-20 株式会社タクマ 燃焼炉内の温度計測システムおよび燃焼炉の燃焼制御システム

Also Published As

Publication number Publication date
NL1027661C2 (nl) 2006-06-07

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