EP0088975A2 - Procédé de surveillance des installations à combustion - Google Patents

Procédé de surveillance des installations à combustion Download PDF

Info

Publication number
EP0088975A2
EP0088975A2 EP83102205A EP83102205A EP0088975A2 EP 0088975 A2 EP0088975 A2 EP 0088975A2 EP 83102205 A EP83102205 A EP 83102205A EP 83102205 A EP83102205 A EP 83102205A EP 0088975 A2 EP0088975 A2 EP 0088975A2
Authority
EP
European Patent Office
Prior art keywords
shut
gas
exhaust gas
output signal
monitoring
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Withdrawn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
EP83102205A
Other languages
German (de)
English (en)
Other versions
EP0088975A3 (fr
Inventor
Friedhelm Dr. Kühn
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.)
EOn Ruhrgas AG
Original Assignee
Ruhrgas 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 Ruhrgas AG filed Critical Ruhrgas AG
Publication of EP0088975A2 publication Critical patent/EP0088975A2/fr
Publication of EP0088975A3 publication Critical patent/EP0088975A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M11/00—Safety arrangements
    • F23M11/04—Means for supervising combustion, e.g. windows
    • 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 invention relates to a method for monitoring Feuerunganlagen using a responsive to the 0 2 partial pressure in the exhaust gas sensor.
  • the air ratio is determined by quantitative measurement of the 0 2 partial pressure in the gas and this is adjusted to a predetermined constant value by appropriate control of the combustion system or the gas and air supply. In this way, the combustion quality can be monitored and kept constant at a favorable value.
  • this known use of an op-partial pressure sensor as a measuring element for the ongoing control of the combustion quality presupposes that the exhaust gas temperatures are in a relatively high temperature range of 500 to 600 ° C. At lower exhaust gas temperatures, the sensor is only suitable for a quantitative measurement of the 0 2 partial pressure in the exhaust gas if it is heated accordingly.
  • recuperator burners or jacket radiant tubes or also other recuperators connected downstream can be damaged in such a way that they undergo expensive repairs or even have to be replaced.
  • Periodic maintenance of the combustion system or checking the combustion conditions, as they are usually carried out, are of little help, since the combustion conditions can change significantly immediately after a maintenance cycle.
  • Another problem with the operation of firing systems was the leakage of solenoid valves, which are used to shut off the gas supply lines to radiant heating pipes. In the case of leaking gas solenoid valves, there is a risk that unburned gas will be introduced into the exhaust system. This cannot be tolerated. This problem has hitherto been countered by arranging double shut-off valves with a blow-off device in the glass feed line. Such an installation is extremely expensive.
  • the invention has for its object to provide a method that allows sensitive and reliable monitoring of the combustion devices even at low exhaust gas temperatures with little equipment, so that Jacket radiant tubes and recuperator burners can be monitored continuously.
  • the method should also offer the possibility of monitoring recuperator burners and jacket radiant tubes for other operational or technical malfunctions.
  • the sensors that can be used here show a sudden change in their output signal when used under high exhaust gas temperatures of 500-600 ° C. What is new and exploited by the invention is that this abrupt change can still be ascertained in a defined manner and can be used for switching purposes if the measurement characteristic of the sensor becomes discontinuous due to the low exhaust gas temperatures and a quantitative detection of the 0 2 partial pressure is excluded.
  • a sudden change in the sensor output signal indicates that the combustion has, for example, changed from excess air to insufficient air. Accordingly, the furnace must be serviced immediately.
  • a switching signal to shut off the gas supply and possibly other media inlets and outlets, further use of the combustion system under unfavorable combustion conditions can be avoided. With the aid of a warning signal, the operating personnel can alternatively or additionally switch off manually and immediate maintenance of the furnace must be stopped.
  • a corresponding monitoring option is also given in the case of jacket radiant heating tubes or recuperator burners which are operated under stoichiometry, for example for producing a protective gas.
  • a safety chain consisting of a gas shut-off element and an end position indicator confirming the open and closed position of the gas shut-off element is preferably used to monitor radiant heating tubes.
  • the tightness of such a gas shut-off device for example a solenoid valve, can be checked with the method according to the invention simply by comparing the sensor output signal with a predetermined lower limit value after the gas shut-off device has been closed and the closed position has been confirmed by the end position indicator. If the actual value of the sensor output signal is above this limit value, a warning signal is generated.
  • a manual shut-off valve can then be closed immediately to shut off the associated gas supply line.
  • the penetration of foreign gas into a jacket radiant tube can also be determined by the method according to the invention.
  • the penetration of extraneous gas leads to a shift in the sensor output signal. Based on these All flow media inlets and outlets connected to the jacket radiant tube can be blocked.
  • FIG. 1 shows a firing system with a jacket radiant tube 1 which has a central feed tube 2 for gas and a chamber 3 surrounding it for the supply of the combustion air.
  • the combustion gas and the air are mixed in a burner mouth 4.
  • the combustion pipe 5, in which the combustion takes place, is connected to the burner mouth 4.
  • the exhaust gases are conducted back in a jacket tube 6 concentrically surrounding the combustion tube and preheat the combustion air in the heat exchange section of the jet heating tube 1 adjacent to the annular chamber 3.
  • a sensor 8 is arranged, which responds to the 0 2 partial pressure in the exhaust gas.
  • EMF electrical output signal
  • a safety chain comprising a solenoid valve 13 arranged in the gas line 12 and a mechanical limit switch 14 is provided, which determines the open and closed positions of the gas solenoid valve 13.
  • a position indicator 15 is connected to the mechanical limit switch 14, which converts the mechanically tapped end position into an electrical signal and inputs it into the controller 9.
  • a further shut-off element in the form of a solenoid valve 17 is arranged in the air supply line 16 and a shut-off element in the form of a solenoid valve 19 is arranged in the exhaust gas line 18.
  • a manual shut-off valve 20 is connected upstream of the solenoid valve 13 and serves as a safety shut-off if the solenoid valve 13 fails.
  • the controller 9 generates a warning signal, for example via the acoustic fault indicator 10 or a switching signal for immediately switching off at least the gas supply by means of the solenoid valve 13.
  • the closed position of the solenoid valve 13 is confirmed via the limit switch 14 and the end position indicator 15 to the controller 9. If, in this confirmed closed position, an output signal is given to the controller 9 via the sensor 8 that exceeds a lower limit value specified in the controller, a warning signal is issued so that the manual shut-off valve 20 can be closed immediately. In this way, continuous monitoring of leaks of the relevant shut-off elements is possible with the help of the same ° 2 partial pressure sensor 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Control Of Combustion (AREA)
  • Examining Or Testing Airtightness (AREA)
EP83102205A 1982-03-11 1983-03-07 Procédé de surveillance des installations à combustion Withdrawn EP0088975A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3208765A DE3208765A1 (de) 1982-03-11 1982-03-11 Verfahren zur ueberwachung von feuerungsanlagen
DE3208765 1982-03-11

Publications (2)

Publication Number Publication Date
EP0088975A2 true EP0088975A2 (fr) 1983-09-21
EP0088975A3 EP0088975A3 (fr) 1984-09-12

Family

ID=6157911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102205A Withdrawn EP0088975A3 (fr) 1982-03-11 1983-03-07 Procédé de surveillance des installations à combustion

Country Status (6)

Country Link
US (1) US4508501A (fr)
EP (1) EP0088975A3 (fr)
JP (1) JPS58208514A (fr)
CA (1) CA1205544A (fr)
DD (1) DD209681A5 (fr)
DE (1) DE3208765A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2607905A1 (fr) * 1986-12-05 1988-06-10 Pramata Dispositif de verification de l'etat des fumees d'un generateur de chaleur ou de force brulant un combustible
DE19756788A1 (de) * 1997-12-19 1999-06-24 Babcock Kraftwerkstech Gmbh Entnahmesonde für Sauerstoff-Messungen an kohlenstaubgefeuerten Dampferzeugeranlagen
DE102009029118A1 (de) * 2009-09-02 2011-03-03 Loi Thermprocess Gmbh Strahlheizvorrichtung
CN103542424A (zh) * 2013-11-01 2014-01-29 合肥金星机电科技发展有限公司 高温探头组件

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3408397A1 (de) * 1984-03-08 1985-09-19 Ruhrgas Ag, 4300 Essen Verfahren und anordnung zur bestimmung des mischungsverhaeltnisses eines ein sauerstofftraegergas und einen brennstoff enthaltenden gemisches
DE3430985A1 (de) * 1984-08-23 1986-03-06 Ruhrgas Ag, 4300 Essen Verfahren und anordnung zur regelung eines industriebrenners mit integriertem rekuperator
FR2592465B1 (fr) * 1985-12-31 1988-03-25 Brunel Gerald Installation de surveillance du fonctionnement d'une chaudiere
NL8800226A (nl) * 1988-01-29 1989-08-16 Stork Contiweb Droger voor een materiaalbaan.
EP0861402A1 (fr) * 1995-11-13 1998-09-02 Gas Research Institute Appareil et procede de commande d'ionisation de flamme
US5665916A (en) * 1996-06-28 1997-09-09 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Fuel line based acoustic flame-out detection system
US6296050B1 (en) 1998-08-14 2001-10-02 Brinck, Ii Joseph A. Heat exchanger
US6299433B1 (en) 1999-11-05 2001-10-09 Gas Research Institute Burner control
DE10324299B3 (de) * 2003-05-21 2004-12-23 Aichelin Entwicklungszentrum Und Aggregatebau Gesellschaft Mbh Verfahren und Vorrichtung zur Überwachung der Dichtheit eines von einem Gasbrenner befeuerten Strahlrohres
SE527766C2 (sv) * 2004-10-22 2006-05-30 Sandvik Intellectual Property Förfarande för förbränning med brännare för industriugnar, jämte brännare
US7241135B2 (en) * 2004-11-18 2007-07-10 Honeywell International Inc. Feedback control for modulating gas burner
US11747045B2 (en) * 2019-06-21 2023-09-05 Frost Fighter Inc. Portable indirect fuel fired heater with automated combustion optimization

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593661A (en) * 1952-04-22 Boiler efficiency instrument
US2255540A (en) * 1939-03-22 1941-09-09 Henry A Dreffein Combustion apparatus
CH578712A5 (fr) * 1974-12-05 1976-08-13 Landis & Gyr Ag
DE2510718C2 (de) * 1975-03-12 1981-12-17 Friedrichsfeld Gmbh, Steinzeug- Und Kunststoffwerke, 6800 Mannheim Verbundregler für einen Gas-, Öl und Kohlestaubbrenner
DK145685C (da) * 1976-04-26 1983-08-08 Lars Leksander Slyn Joergensen Fremgangsmaade og apparat til regulering af forbraendingen i et fyr
FI772751A7 (fi) * 1976-12-14 1978-06-15 Measurex Corp Foerfarande och anordning foer att kontrollera effektiviteten av foerbraenningen i en ugn
US4116612A (en) * 1977-01-31 1978-09-26 Despatch Industries, Inc. Gas monitor system
US4150939A (en) * 1977-08-22 1979-04-24 Reliance Instrument Manufacturing Corp. Differential controller for positioning combustion system
JPS54125541A (en) * 1978-03-22 1979-09-29 Ngk Spark Plug Co Ltd Gas burner safety device
JPS559178A (en) * 1978-07-07 1980-01-23 Nippon Denso Co Ltd Oxygen concentration detector
DE2950689A1 (de) * 1979-12-17 1981-06-25 Servo-Instrument, in Deutschland Alleinvertrieb der BEAB-Regulatoren GmbH u. Co KG, 4050 Mönchengladbach Regelvorrichtung fuer die verbrennungsluftmenge einer feuerstaette
US4303194A (en) * 1980-02-28 1981-12-01 U.S. Steel Corporation Smoke prevention apparatus
DE3019622A1 (de) * 1980-05-22 1981-11-26 SIEMENS AG AAAAA, 1000 Berlin und 8000 München Verfahren zum betrieb einer vergasungsbrenner/heizkesselanlage
DE3028665A1 (de) * 1980-07-29 1982-02-25 Brown, Boveri & Cie Ag, 6800 Mannheim Einrichtung mit einem sauerstoff-messfuehler
DE3037936A1 (de) * 1980-10-08 1982-05-27 Robert Bosch Gmbh, 7000 Stuttgart Temperatur-regeleinrichtung fuer gas- oder oelbeheizte wassererhitzer
DE3039994A1 (de) * 1980-10-23 1982-05-06 Karl Dungs Gmbh & Co, 7067 Urbach Verfahren zur einstellung von verbundreglern fuer brenner in waermeerzeugungsanlagen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2607905A1 (fr) * 1986-12-05 1988-06-10 Pramata Dispositif de verification de l'etat des fumees d'un generateur de chaleur ou de force brulant un combustible
DE19756788A1 (de) * 1997-12-19 1999-06-24 Babcock Kraftwerkstech Gmbh Entnahmesonde für Sauerstoff-Messungen an kohlenstaubgefeuerten Dampferzeugeranlagen
DE102009029118A1 (de) * 2009-09-02 2011-03-03 Loi Thermprocess Gmbh Strahlheizvorrichtung
EP2292976A3 (fr) * 2009-09-02 2012-11-21 LOI Thermprocess GmbH Dispositif de chauffage par rayonnement
CN103542424A (zh) * 2013-11-01 2014-01-29 合肥金星机电科技发展有限公司 高温探头组件
CN103542424B (zh) * 2013-11-01 2015-09-09 合肥金星机电科技发展有限公司 高温探头组件

Also Published As

Publication number Publication date
CA1205544A (fr) 1986-06-03
DD209681A5 (de) 1984-05-16
US4508501A (en) 1985-04-02
EP0088975A3 (fr) 1984-09-12
DE3208765A1 (de) 1983-09-22
JPS58208514A (ja) 1983-12-05

Similar Documents

Publication Publication Date Title
DD209681A5 (de) Verfahren zur ueberwachung von feuerungsanlagen
EP1744102B1 (fr) Brûleur à gaz
DD239440A5 (de) Optische pyrometersichtroehren-anordnung zur ueberwachung einer gasturbine
EP3985306B1 (fr) Procédé et dispositif de fonctionnement sécurisé d'un brûleur fonctionnant à haute teneur en hydrogène
DE2806925A1 (de) Steuergeraet fuer einen abfackelbrenner
EP2017531B1 (fr) Procédé de vérification d'un signal issu d'électrodes d'ionisation pour brûleurs
EP3825623B1 (fr) Appareil chauffant à réglage de mode d'urgence
DE69504541T2 (de) Fehlererkennung eines Fühlers
CN110669912B (zh) 热镀锌立式退火炉氮气联锁控制系统操作方法
DE69803294T2 (de) Brenneranlage
EP2292976B1 (fr) Dispositif de chauffage par rayonnement
DE102004004065A1 (de) Verfahren und Vorrichtung zur vorbeugenden Fehlererkennung bei elektronisch geregelten oder gesteuerten Geräten
DE2937021C2 (de) Meßgerät und Meßanordnung zur Feststellung von Undichtigkeiten im Kühlflüssigkeitskreislauf von Hochofendüsen
EP0591790B1 (fr) Procédé et dispositif de carbonisation-combustion à commande de pression
DE102019115973A1 (de) Messeinrichtung zur bestimmung des brennwerts eines gasstroms in einer gasleitung und gasverteilernetz mit einer solchen messeinrichtung
EP0119481B1 (fr) Procédé de contrôle des dispositifs de renversement de batteries de fours à coke
EP4012260A1 (fr) Procédé de régulation d'un procédé de combustion d'une chaudière à gaz et chaudière à gaz
DE2515531A1 (de) Vorrichtung zur verhinderung der entstehung eines ueberdrucks in oefen
DE19956395A1 (de) Verfahren zur Flammenüberwachung bei Gasbrennern sowie entsprechende Vorrichtung
EP4145047B1 (fr) Procédé et dispositif de détection de l'allumage de flammes dans une chambre de combustion d'un appareil chauffant, et produit programme informatique
DE3841741C2 (fr)
AT413060B (de) Verfahren und vorrichtung zur vorbeugenden fehlererkennung bei elektronisch geregelten oder gesteuerten geräten
DE19908885A1 (de) Verfahren zum Betrieb eines mit Brenngasen wechselnder Zusammensetzungen versorgten Energieumsetzers
DE1965073B2 (de) Verfahren zur kontinuierlichen Bestimmung des Kohlenstoffgehaltes der Stahlschmelze in einem Sauerstoff-Aufblaskonverter
DE19840054C1 (de) Verfahren und Vorrichtung zur Steuerung von Brennwertanlagen

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

Designated state(s): DE GB SE

RBV Designated contracting states (corrected)

Designated state(s): DE GB SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): DE GB SE

17P Request for examination filed

Effective date: 19850201

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19871001

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KUEHN, FRIEDHELM, DR.