EP0527464A1 - Dispositif pour surveiller la qualité de combustion - Google Patents

Dispositif pour surveiller la qualité de combustion Download PDF

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Publication number
EP0527464A1
EP0527464A1 EP92113620A EP92113620A EP0527464A1 EP 0527464 A1 EP0527464 A1 EP 0527464A1 EP 92113620 A EP92113620 A EP 92113620A EP 92113620 A EP92113620 A EP 92113620A EP 0527464 A1 EP0527464 A1 EP 0527464A1
Authority
EP
European Patent Office
Prior art keywords
flame
photo resistance
tension
terminals
combustion
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Withdrawn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
EP92113620A
Other languages
German (de)
English (en)
Inventor
Gianluca Ambrosi
Bruno Tagliaferro
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.)
RBL Riello Bruciatori Legnago SpA
Original Assignee
RBL Riello Bruciatori Legnago SpA
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 RBL Riello Bruciatori Legnago SpA filed Critical RBL Riello Bruciatori Legnago SpA
Publication of EP0527464A1 publication Critical patent/EP0527464A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2229/00—Flame sensors

Definitions

  • the invention concerns a device for checking the combustion quality obtained through the checking of the flame light.
  • a photo resistance device checking the presence of the flame.
  • This device is of the ON-OFF type, i.e. it causes the interruption of the fuel inlet into the burner, whenever the flame goes off for any reason. As a consequence, the air inlet into the burner is also interrupted, even with a certain delay. Because of the very nature of its function, the photo resistance ON-OFF device is not able to give off any signal concerning the quality of the flame seen by the photo resistance. In actuality, there is no way of checking whether the combustion occurs in a satisfactory fashion with a low emission of NO x or whether it is necessary to operate a correction of the parameters in the burner.
  • the purpose of the present invention is to overcome the previously described limits and also the inconveniences caused by the impossibility of knowing the quality of the flame and, therefore, the quality of the combustion occurring in the burner.
  • a device for the control of the quality of the flame-light, strictly in relation with the combustion quality in a combustion system which is characterized in that it comprises:
  • the electronic circuit is supplied between the terminals A and B by a stabilized direct-current network tension.
  • Said stabilized tension which in the example given is of about 15 Volts, supplies the terminals 12 and 11 of the circuit, between which are inserted the photo resistance 2 and the tension adapter 3.
  • the tension adapter 3 is necessary, since it is important and basic that there be at the terminals 12 and 11 an insured pre-set tension, in relation with a light source of a known intensity. Since the photo resistances have a certain degree of variability, through the tension adapter 3, which presents an adjustable resistance 4, it is possible to obtain the desired tension, when the photo resistance 2 is hit by a known source.
  • This tension variation is intercepted by the terminals 13 and 14 of a section 5 of the electronic circuit operating as a filter, a limiting device and a delaying device.
  • the filtering function concerns the filtering of the disturbance tensions induced by the transformer of the burner.
  • the tension limiting function is just as important in order to avoid induced excess voltage and the delaying circuit is also necessary in order for the electronic device to read the intensity of the flame without being interfered with by the flame pulsations which inevitably occur during the normal working cycle of the burner.
  • a signal 15 is let out, which is sent to the comparing circuit 6 which amplifies the tension interval let out of section 5 of the electronic circuit and sends it to the amplifier 7 supplying the leds, which are indicated with 8.
  • the maximum tension supplying the leds 8 also is let out of amplifier 7. In this case, then, all the leds are lit up and reach their utmost luminosity. As the tension increasingly decreases, which means that the luminosity of the flame increases, and as a consequence the combustion worsens, the intensity of the tension let out by amplifier 7 is also decreased and the leds 8 go increasingly off.
  • the quantity of NO x present in the exhaust fumes is recorded in the abscissae and the lux of the burner flame are recorded in the ordinates.
EP92113620A 1991-08-12 1992-08-10 Dispositif pour surveiller la qualité de combustion Withdrawn EP0527464A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI910134 1991-08-12
ITVI910134A IT1253764B (it) 1991-08-12 1991-08-12 Dispositivo di controllo della qualita' della combustione

Publications (1)

Publication Number Publication Date
EP0527464A1 true EP0527464A1 (fr) 1993-02-17

Family

ID=11424725

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92113620A Withdrawn EP0527464A1 (fr) 1991-08-12 1992-08-10 Dispositif pour surveiller la qualité de combustion

Country Status (2)

Country Link
EP (1) EP0527464A1 (fr)
IT (1) IT1253764B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2553597C2 (ru) * 2013-10-18 2015-06-20 Федеральное государственное казенное военное образовательное учреждение высшего профессионального образования Военная академия Ракетных войск стратегического назначения имени Петра Великого МО РФ Способ определения режимов зажигания и горения взрывчатого наполнения боеприпасов при утилизации выжиганием

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB962800A (en) * 1959-11-05 1964-07-01 Babcock & Wilcox Ltd Improvements in flame monitoring apparatus
US3613062A (en) * 1968-02-22 1971-10-12 Memco Ltd Flame quality and presence monitor for multiburner furnaces
DE3224500A1 (de) * 1982-07-01 1984-01-05 Klaus 2071 Hoisdorf Rothenburg Vorrichtung zur ueberwachung des verbrennungsverhaltens einer verbrennungsvorrichtung
US4882573A (en) * 1988-03-25 1989-11-21 Pullman Canada Ltd. Apparatus and method for detecting the presence of a burner flame

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB962800A (en) * 1959-11-05 1964-07-01 Babcock & Wilcox Ltd Improvements in flame monitoring apparatus
US3613062A (en) * 1968-02-22 1971-10-12 Memco Ltd Flame quality and presence monitor for multiburner furnaces
DE3224500A1 (de) * 1982-07-01 1984-01-05 Klaus 2071 Hoisdorf Rothenburg Vorrichtung zur ueberwachung des verbrennungsverhaltens einer verbrennungsvorrichtung
US4882573A (en) * 1988-03-25 1989-11-21 Pullman Canada Ltd. Apparatus and method for detecting the presence of a burner flame

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2553597C2 (ru) * 2013-10-18 2015-06-20 Федеральное государственное казенное военное образовательное учреждение высшего профессионального образования Военная академия Ракетных войск стратегического назначения имени Петра Великого МО РФ Способ определения режимов зажигания и горения взрывчатого наполнения боеприпасов при утилизации выжиганием

Also Published As

Publication number Publication date
ITVI910134A0 (it) 1991-08-12
ITVI910134A1 (it) 1993-02-12
IT1253764B (it) 1995-08-23

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