EP0352619A2 - Méthode de régulation de la puissance de combustion pour installations de combustion - Google Patents

Méthode de régulation de la puissance de combustion pour installations de combustion Download PDF

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Publication number
EP0352619A2
EP0352619A2 EP89113258A EP89113258A EP0352619A2 EP 0352619 A2 EP0352619 A2 EP 0352619A2 EP 89113258 A EP89113258 A EP 89113258A EP 89113258 A EP89113258 A EP 89113258A EP 0352619 A2 EP0352619 A2 EP 0352619A2
Authority
EP
European Patent Office
Prior art keywords
measured
setpoint
flue gas
controlling
mass flow
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
EP89113258A
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German (de)
English (en)
Other versions
EP0352619A3 (fr
EP0352619B1 (fr
Inventor
Johannes Josef Edmund Martin
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.)
Martin GmbH fuer Umwelt und Energietechnik
Original Assignee
Martin GmbH fuer Umwelt und Energietechnik
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.)
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Publication date
Application filed by Martin GmbH fuer Umwelt und Energietechnik filed Critical Martin GmbH fuer Umwelt und Energietechnik
Publication of EP0352619A2 publication Critical patent/EP0352619A2/fr
Publication of EP0352619A3 publication Critical patent/EP0352619A3/fr
Application granted granted Critical
Publication of EP0352619B1 publication Critical patent/EP0352619B1/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
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F23N1/022—Regulating fuel supply conjointly with air supply using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B35/00—Control systems for steam boilers
    • 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
    • F23N1/00—Regulating fuel supply
    • F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
    • F23N1/10—Regulating fuel supply conjointly with another medium, e.g. boiler water and with air supply or draught
    • F23N1/102—Regulating fuel supply conjointly with another medium, e.g. boiler water and with air supply or draught 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
    • F23N5/003—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2900/00—Special features of, or arrangements for incinerators
    • F23G2900/55—Controlling; Monitoring or measuring
    • F23G2900/55008—Measuring produced steam flow rate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/04—Measuring pressure
    • F23N2225/06—Measuring pressure for determining flow
    • 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
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F23N2233/08—Ventilators at the air intake with variable speed
    • 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
    • F23N2235/06—Air or combustion gas valves or dampers at the air intake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2241/00—Applications
    • F23N2241/18—Incinerating apparatus
    • 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

Definitions

  • the invention relates to a method for controlling the fire output in incineration plants, in particular waste incineration plants, in which the O 2 moisture content measured in the flue gas as the higher-level setpoint control variable for controlling the fuel supply and optionally the measured steam mass flow or the combustion chamber temperature measured in the combustion gas is used as a subordinate setpoint control variable for controlling the primary air supply.
  • a disadvantage of this method is the fact that the O 2 moisture content does not provide any definite information about the O 2 dry content and thus about the true excess air.
  • the measurement of the O 2 dry content of the combustion gas is too sluggish and too uncertain under the existing operating conditions.
  • the combustion chamber temperature is kept constant as a higher target value while the O 2 moisture content is kept constant, there is a change in the steam mass flow in the event of fluctuations in the moisture content of the flue gases, which can lead to a deterioration in the thermal utilization of the overall system.
  • the material size ie the O 2 moisture content, dominates over the thermal values, namely the steam mass flow and the combustion chamber temperature.
  • the object of the invention is to optimize both the emission values and the fire performance based on the two variants of the known methods mentioned at the outset.
  • This task can be accomplished in two ways.
  • the solution to the problem is based on a process in which the O 2 moisture content measured in the flue gas is used as the higher-level setpoint control variable for controlling the fuel supply and the measured steam mass flow as lower-level setpoint control variable for the control of the primary air supply that the specified O 2 humidity setpoint is changed as a function of the combustion chamber temperature measured in the flue gas.
  • two temperature points are defined as limit values, the O 2 moist setpoint being increased when the upper temperature value is exceeded, while the value is increased when the temperature falls below the lower temperature limit O 2 wet setpoint is lowered.
  • the "apparent” excess air is increased, while in the second case the "apparent” excess air is reduced.
  • An even better control accuracy is achieved according to a preferred embodiment of the method in that the rate of change of the measured temperature or steam mass flow value is taken into account when changing the O 2 moist setpoint.
  • the differential of the temperature change or the change in steam mass flow over time is taken into account, so that a change in the O 2 moist setpoint can be carried out before the limit values are reached, as a result of which the combustion system operates even more evenly because the regulation is more sensitive.
  • the O 2 moisture content measured in the flue gas 2 is used as the higher-level control variable 7, which is fed to a controller 3, which, if this control variable deviates from a specific range of guide values, is used to regulate the fire output of a combustion system 1 consisting of the furnace and boiler acts to feed the furnace with fuel and / or acts on the grate drive.
  • the steam mass flow ⁇ D emerging from the boiler is measured and this control variable 10 is fed to a further controller 5 which, if the measured value deviates from a predetermined range of guide values for the steam mass flow, to the devices provided for setting the amount of combustion air, such as, for. B. acts fan drive and control flaps in the air distribution system.
  • both the combustion chamber temperature as controlled variable 6 and the O 2 moisture content, which is designated as measured value 7, are determined in the flue gas 2 emerging from the combustion system 1. Both values 6 and 7 are fed to a controller 8. On the basis of an operating mode to be regarded as particularly favorable or optimal, the measured O 2 moisture content is regarded as the target value. If there is a change in the combustion chamber temperature, this change having to be above a predetermined tolerance limit, the O 2 wet setpoint is changed by the controller 8. If the upper tolerance limit of the temperature value is exceeded, the O 2 wet setpoint is increased, while if the lower temperature tolerance limit is undershot, the O 2 moist setpoint is lowered.
  • This modified O 2 moist setpoint is then fed as a control variable 9 to the controller 3, which changes the fuel supply by acting on the feed device and / or changes the grate speed by acting on the grate drive.
  • the controller 3 is therefore not acted on with the measured O 2 moist value, but rather with an O 2 moist setpoint corrected as a function of the furnace temperature.
  • the measured steam mass flow ⁇ D is fed as control variable 10 to the controller 5, which monitors the combustion air supply, as in the known method.
  • the measured O 2 -measured measured value is also used as the target value, starting from an operating state which is considered to be optimal.
  • This measured value is also recorded in the flue gas 2, which leaves the combustion system 1 consisting of the furnace and the boiler.
  • This measured value 6 is fed to the controller 8.
  • the controller 8 receives the steam mass flow ⁇ D measured at 4 as the control variable 10.
  • the controller 8 now changes the control variable 6 when the steam mass flow leaves a predetermined range of guide values, namely when the upper steam mass flow limit value is exceeded, the O 2 moist setpoint is increased and when the lower steam mass flow limit value is undershot, the O 2 moist Setpoint value lowered and supplied as a corrected control variable 11 to the controller 3, which makes a change in the fuel supply and / or the combustion grate speed in the event of a corresponding deviation in the O 2 moist setpoint value.
  • the combustion chamber temperature measured in the flue gas is fed as a subordinate control variable 12 to the controller 5, which monitors the amount of combustion air supplied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Incineration Of Waste (AREA)
EP89113258A 1988-07-29 1989-07-19 Méthode de régulation de la puissance de combustion pour installations de combustion Expired - Lifetime EP0352619B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3825933A DE3825933A1 (de) 1988-07-29 1988-07-29 Verfahren zur regelung der feuerleistung bei verbrennungsanlagen
DE3825933 1988-07-29

Publications (3)

Publication Number Publication Date
EP0352619A2 true EP0352619A2 (fr) 1990-01-31
EP0352619A3 EP0352619A3 (fr) 1991-08-07
EP0352619B1 EP0352619B1 (fr) 1994-11-02

Family

ID=6359912

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113258A Expired - Lifetime EP0352619B1 (fr) 1988-07-29 1989-07-19 Méthode de régulation de la puissance de combustion pour installations de combustion

Country Status (4)

Country Link
US (1) US4981087A (fr)
EP (1) EP0352619B1 (fr)
JP (1) JP3145998B2 (fr)
DE (1) DE3825933A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2667134A1 (fr) * 1990-09-24 1992-03-27 Pavese Guy Procede d'amelioration de la combustion pour bruleur a air souffle et moyens destines a le mettre en óoeuvre.
EP0561044A1 (fr) * 1992-03-16 1993-09-22 Praxair Technology, Inc. Méthode de commande d'un incinérateur avec une commande simultanée de température et de produits à combustion incomplète

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2673627B2 (ja) * 1991-02-22 1997-11-05 フォン ロール ウムヴェルトテクニック アクチエンゲゼルシャフト ごみ焼却プラントの操作方法およびその制御システム
DE4428159C2 (de) * 1994-08-09 1998-04-09 Martin Umwelt & Energietech Verfahren zur Regelung der Feuerung bei Verbrennungsanlagen, insbesondere Abfallverbrennungsanlagen
CH694823A5 (de) * 2000-12-08 2005-07-29 Von Roll Umwelttechnik Ag Verfahren zum Betreiben einer Müllverbrennungsanlage.
IT1402556B1 (it) * 2010-11-08 2013-09-13 Amsa S P A Societa Per Azioni Con Socio Unico Sistema di controllo del carico e della combustione, per impianti di combustione dei rifiuti.
US9655358B2 (en) * 2014-05-22 2017-05-23 Seoul Metropolitan Goverment Apparatus for repelling birds

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2064780A (en) * 1979-11-23 1981-06-17 Neotronics Ltd Apparatus for measuring the efficiency of combustion appliances
JPS5845411A (ja) * 1981-09-11 1983-03-16 Toshiba Corp 燃焼制御装置
JPS58104418A (ja) * 1981-12-16 1983-06-21 Toshiba Corp ボイラ自動燃焼制御装置
JPS58120022A (ja) * 1982-01-11 1983-07-16 Kawasaki Steel Corp 加熱炉の燃焼制御方法
JPS59164823A (ja) * 1983-03-10 1984-09-18 Mitsubishi Heavy Ind Ltd 移動床ドラム形石炭焚ボイラ
JPS62206319A (ja) * 1986-03-04 1987-09-10 Yamamoto Seisakusho:Kk バ−ナの空燃比制御装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5984022A (ja) * 1982-11-08 1984-05-15 Ebara Corp 都市ごみ焼却設備の運転方法
JPS59119111A (ja) * 1982-12-24 1984-07-10 Yokogawa Hokushin Electric Corp ボイラのガスｏ↓２制御装置
JPS59212620A (ja) * 1983-05-16 1984-12-01 Toshiba Corp 燃焼排気ガス中の酸素濃度制御方法
JPS60232421A (ja) * 1984-05-01 1985-11-19 Ishikawajima Harima Heavy Ind Co Ltd 加熱炉への燃料供給量の制御方法
US4742783A (en) * 1987-08-06 1988-05-10 Phillips Petroleum Company Incinerator combustion air control

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2064780A (en) * 1979-11-23 1981-06-17 Neotronics Ltd Apparatus for measuring the efficiency of combustion appliances
JPS5845411A (ja) * 1981-09-11 1983-03-16 Toshiba Corp 燃焼制御装置
JPS58104418A (ja) * 1981-12-16 1983-06-21 Toshiba Corp ボイラ自動燃焼制御装置
JPS58120022A (ja) * 1982-01-11 1983-07-16 Kawasaki Steel Corp 加熱炉の燃焼制御方法
JPS59164823A (ja) * 1983-03-10 1984-09-18 Mitsubishi Heavy Ind Ltd 移動床ドラム形石炭焚ボイラ
JPS62206319A (ja) * 1986-03-04 1987-09-10 Yamamoto Seisakusho:Kk バ−ナの空燃比制御装置

Non-Patent Citations (9)

* Cited by examiner, † Cited by third party
Title
ADVANCES IN INSTRUMENTATION, Band 30, Nr. 3, 1975, Seiten 1-5, Pittsburgh, US; L.J. KUHLMAN: "Control of waste firing in industrial boilers". *
INSTRUMENTS AND CONTROL SYSTEMS, Band 50, Nr. 11, November 1977, Seiten 35-41, Radnor, US; S.G. DUKELOW: "Combustion controls save money". *
J. Martin, W. Methfessel, Forschung Aktuell, Nr. 16-17/Jahrgang 4, "Anwendung moderner Steuerungs- und Automatisierungstechnik in Müllverbrennungsanlagen", November 1987, TU Berlin. *
PATENT ABSTRACTS OF JAPAN, Band 12, Nr. 61 (M-671)[2908], 24. Februar 1988; & JP-A-62 206 319 (YAMAMOTO SEISAKUSHO K.K.) 10-09-1987. *
PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 128 (M-220)[1273], 3. Juni 1983; & JP-A-58 045 411 (TOKYO SHIBAURA DENKI K.K.) 16-03-1983. *
PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 207 (M-242)[1352], 13. September 1983; & JP-A-58 104 418 (TOKYO SHIBAURA DENKI K.K.) 21-06-1983. *
PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 207 (M-242)[1352], 13. September 1983; & JP-A-58 104 418 (TOKYO SHIBAURA DENKI) 21-06-1983. *
PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 227 (M-248)[1372], 7. Oktober 1983; & JP-A-58 120 022 (KAWASAKI) 16-07-1983. *
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 18 (M-353)[1741], 25. Januar 1985; & JP-A-59 164 823 (MITSUBISHI) 18-09-1984. *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2667134A1 (fr) * 1990-09-24 1992-03-27 Pavese Guy Procede d'amelioration de la combustion pour bruleur a air souffle et moyens destines a le mettre en óoeuvre.
EP0478481A1 (fr) * 1990-09-24 1992-04-01 Guy Pavese Procédé d'amélioration de la combustion pour brûleur à air soufflé et moyens destinés à le mettre en oeuvre
EP0561044A1 (fr) * 1992-03-16 1993-09-22 Praxair Technology, Inc. Méthode de commande d'un incinérateur avec une commande simultanée de température et de produits à combustion incomplète

Also Published As

Publication number Publication date
EP0352619A3 (fr) 1991-08-07
US4981087A (en) 1991-01-01
DE3825933A1 (de) 1990-02-01
JP3145998B2 (ja) 2001-03-12
DE3825933C2 (fr) 1991-12-12
EP0352619B1 (fr) 1994-11-02
JPH0278816A (ja) 1990-03-19

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