EP0352619B1 - Verfahren zur Regelung der Feuerleistung bei Verbrennungsanlagen - Google Patents

Verfahren zur Regelung der Feuerleistung bei Verbrennungsanlagen Download PDF

Info

Publication number
EP0352619B1
EP0352619B1 EP89113258A EP89113258A EP0352619B1 EP 0352619 B1 EP0352619 B1 EP 0352619B1 EP 89113258 A EP89113258 A EP 89113258A EP 89113258 A EP89113258 A EP 89113258A EP 0352619 B1 EP0352619 B1 EP 0352619B1
Authority
EP
European Patent Office
Prior art keywords
regulating
measured
mass flow
setpoint
moist
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
EP89113258A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0352619A2 (de
EP0352619A3 (de
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.)
Filing date
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/de
Publication of EP0352619A3 publication Critical patent/EP0352619A3/de
Application granted granted Critical
Publication of EP0352619B1 publication Critical patent/EP0352619B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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 regulating the fire output in incineration plants, in particular waste incineration plants, in which the O 2 moisture content measured in the flue gas as a higher-level setpoint control variable for controlling the fuel supply and optionally the measured steam mass flow or the combustion chamber temperature determined 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 0 2 -dry content does not give a definite statement about the 0 2 -dry content and thus about the true excess of air.
  • the measurement of the 0 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 superordinate setpoint with the 0 2 moisture content 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 0 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 method in which the 0 2- moisture content measured in the flue gas is used as the superordinate setpoint control variable for controlling the fuel supply and the measured steam mass flow as subordinate setpoint control variable for controlling the primary air supply that the specified 0 2-humid setpoint is changed depending on the combustion chamber temperature measured in the flue gas.
  • two temperature points are defined as limit values, the 0 2 moist setpoint being increased when the upper temperature value is exceeded, while when the temperature falls below the lower limit, the 0 2-humid setpoint is lowered.
  • the "apparent" excess air is increased, while in the second case, the "apparent” excess air is reduced.
  • the combustion chamber temperature is within the selected limit values, there is no influence on the 0 2-humid setpoint.
  • An even better control accuracy is achieved according to a preferred embodiment of the method in that when the 0 2-moist setpoint changes, the rate of change of the measured temperature or. Steam mass flow value is taken into account.
  • the differential of the temperature change or the steam mass flow change over time is taken into account, so that a change in the 0 2 moist setpoint value 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 0 2- moisture content measured in the flue gas 2 is used as the higher-level control variable 7 for controlling the fire output of a combustion system 1 consisting of the furnace and the boiler, which is fed to a controller 3 which, when this control variable deviates from a specific range of guide values, onto the feed device acts on the firing 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, when the measured value deviates from a predetermined guide value range of 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 0 2 moist 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. Based on a mode of operation that is to be regarded as particularly favorable or optimal, the measured 0 2 moisture content is regarded as the setpoint. If there is a change in the combustion chamber temperature, this change must be above a predefined tolerance limit, the 0 2-moist setpoint is changed by the controller 8.
  • 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. In contrast to the known method shown in FIG. 1, the controller 3 is therefore not acted upon with the measured 0 2-humid value, but with a 0 2-humid setpoint corrected as a function of the combustion chamber temperature.
  • the measured steam mass flow ⁇ D is fed as control variable 10 to the controller 5, which, as in the known method, monitors the combustion air supply.
  • the measured 0 2 -measured measured value is also used as the setpoint, 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 0 2-humid setpoint is increased and when the lower steam mass flow limit value is undershot the 0 2-humid setpoint lowered and fed as a corrected controlled variable 11 to the controller 3, which makes a change in the fuel supply and / or the combustion grate speed with a corresponding deviation of the 0 2-humid setpoint.
  • 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 Verfahren zur Regelung der Feuerleistung bei Verbrennungsanlagen Expired - Lifetime EP0352619B1 (de)

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 EP0352619A2 (de) 1990-01-31
EP0352619A3 EP0352619A3 (de) 1991-08-07
EP0352619B1 true EP0352619B1 (de) 1994-11-02

Family

ID=6359912

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113258A Expired - Lifetime EP0352619B1 (de) 1988-07-29 1989-07-19 Verfahren zur Regelung der Feuerleistung bei Verbrennungsanlagen

Country Status (4)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2667134B1 (fr) * 1990-09-24 1995-07-21 Pavese Guy Procede d'amelioration de la combustion pour bruleur a air souffle et moyens destines a le mettre en óoeuvre.
HU212738B (en) * 1991-02-22 1996-10-28 Von Roll Ag Method for operating incinerator with grate and controlling system and incineractor for carrying out that method
US5176086A (en) * 1992-03-16 1993-01-05 Praxair Technology, Inc. Method for operating an incinerator with simultaneous control of temperature and products of incomplete combustion
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.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2064780B (en) * 1979-11-23 1984-04-18 Neotronics Ltd Apparatus for measuring the efficiency of combustion appliances
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
J. Martin, W. Methfessel, Forschung Aktuell, Nr. 16-17/Jahrgang 4, "Anwendung moderner Steuerungs- und Automatisierungstechnik in Müllverbrennungsanlagen", November 1987, TU Berlin. *

Also Published As

Publication number Publication date
DE3825933A1 (de) 1990-02-01
JP3145998B2 (ja) 2001-03-12
EP0352619A2 (de) 1990-01-31
DE3825933C2 (enrdf_load_stackoverflow) 1991-12-12
JPH0278816A (ja) 1990-03-19
US4981087A (en) 1991-01-01
EP0352619A3 (de) 1991-08-07

Similar Documents

Publication Publication Date Title
EP0259382B1 (de) Einrichtung zur regelung des verbrennungsgas-luftverhältniss
EP1621811B1 (de) Betriebsverfahren für eine Feuerungsanlage
DE19820038C2 (de) Verfahren zum Regeln der Feuerleistung von Verbrennungsanlagen
DE2916629A1 (de) Nicht-lineare zweifach-regelschaltung
EP0030736A2 (de) Regelvorrichtung für die Verbrennungsluftmenge einer Feuerstätte
DE2648478C2 (de) Verfahren und Vorrichtung zum Regeln des Luft/Kraftstoffverhältnisses einer mit einem Abgasfühler ausgerüsteten Brennkraftmaschine
DE3822415C2 (enrdf_load_stackoverflow)
EP0352619B1 (de) Verfahren zur Regelung der Feuerleistung bei Verbrennungsanlagen
EP0156958B1 (de) Regelverfahren für die Verbrennungsluftmenge einer Feuerungseinrichtung
DE69205269T2 (de) Verfahren zum Betrieb einer Verbrennungseinrichtung mit gleichzeitiger Regelung von Temperatur und Produkten von unvollständiger Verbrennung.
EP0499976B1 (de) Verfahren zum Betreiben einer Müllverbrennungsanlage
DE3215073A1 (de) Regelanordnung fuer feuerungsanlagen bei dampf- oder heizkesseln
EP0339135A1 (de) Verbundsteuereinrichtung für einen Brenner
EP1971804B1 (de) Verfahren zum betreiben einer feuerungsanlage
DE19603091C1 (de) Verfahren zur Regelung einer Regelstrecke, insbesondere einer Brennkraftmaschine
DE4139862A1 (de) Verfahren zur regelung der eingabemenge eines behandlungsmediums zur verminderung des stickoxidgehaltes in den abgasen von verbrennungsprozessen
AT412903B (de) Verfahren zur steuerung bzw. regelung von feuerungsanlagen sowie danach regelbare feuerungsanlage
EP0086337B1 (de) Verfahren zur Regelung des Luftüberschusses an Feuerungen sowie Regeleinrichtung zur Ausführung des Verfahrens
DE3048979A1 (de) Verfahren zum betrieb eines elektrofilters fuer die gasentstaubung und vorrichtung dazu
EP0358138B1 (de) Verfahren und Anordnung zur Regelung der Brennstoffzufuhr einer Gasturbine
DE19624619C1 (de) Verfahren zur Regelung oder Steuerung des Gehaltes an NO¶x¶ in Abgasen, die beim Betrieb von Glasschmelzöfen mit mehreren Brennern, die im Wechsel betrieben werden, anfallen
EP0644376B1 (de) Verfahren und Vorrichtung zur Regelung eines Brenners
DE2606625C2 (de) Einrichtung zur Verminderung von schädlichen Anteilen der Abgase von Brennkraftmaschinen
DE4118575C2 (de) Verfahren und Vorrichtung zum Bestimmen eines Lambdareglerparameters
DE69806964T2 (de) Verfahren zum steuern der kraftstoffeinspritzung einer brennkraftmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE CH FR GB IT LI NL

ITCL It: translation for ep claims filed

Representative=s name: STUDIO JAUMANN

TCNL Nl: translation of patent claims filed
GBC Gb: translation of claims filed (gb section 78(7)/1977)
EL Fr: translation of claims filed
RHK1 Main classification (correction)

Ipc: F22B 35/00

17P Request for examination filed

Effective date: 19910321

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE CH FR GB IT LI NL

17Q First examination report despatched

Effective date: 19920727

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH FR GB IT LI NL

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950131

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20080715

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20080726

Year of fee payment: 20

Ref country code: NL

Payment date: 20080716

Year of fee payment: 20

Ref country code: FR

Payment date: 20080715

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080722

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20080814

Year of fee payment: 20

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20090718

NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20090719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20090718

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20090719