DE2511917A1 - Fully electronic monitoring of flue gases - employs signal generated to determine soot density of gases and carbon di:oxide concentration - Google Patents

Fully electronic monitoring of flue gases - employs signal generated to determine soot density of gases and carbon di:oxide concentration

Info

Publication number
DE2511917A1
DE2511917A1 DE19752511917 DE2511917A DE2511917A1 DE 2511917 A1 DE2511917 A1 DE 2511917A1 DE 19752511917 DE19752511917 DE 19752511917 DE 2511917 A DE2511917 A DE 2511917A DE 2511917 A1 DE2511917 A1 DE 2511917A1
Authority
DE
Germany
Prior art keywords
measuring chamber
gases
measuring
signal generated
receiver
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.)
Pending
Application number
DE19752511917
Other languages
German (de)
Inventor
Gregor Betz
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.)
BETZ GEB SIEVERT WALTRAUD LIES
Original Assignee
BETZ GEB SIEVERT WALTRAUD LIES
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 BETZ GEB SIEVERT WALTRAUD LIES filed Critical BETZ GEB SIEVERT WALTRAUD LIES
Priority to DE19752511917 priority Critical patent/DE2511917A1/en
Publication of DE2511917A1 publication Critical patent/DE2511917A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The sample of flue gas generates in the region of radiation of the stage at the receiver a signal which is analogous to the cloudiness. The working region is around 950 mm of the spectrum. The measuring stope can be arranged in a measuring chamber combined with a carbon dioxide sensor. The measuring chamber can have baffle plates to generate underpressure or overpressure at the transmitter and receiver, so as to exclude contamination. The measuring stope can have photoconducting glass fibres arranged in the main measuring chamber or a separate measuring chamber. The apparatus includes an amplifier (1C).

Description

Vollelektronische Überwachung Fully electronic monitoring

von Rauchgasen auf Rußdichte Stand der Technik Geräte zur manuellen oder halbautomatischen Messung der Rußdichte zur Bestimmung des feuerungstechnischen Wirkungsgrades sind bekannte Hierbei wird dem Rauchgas über eine einfache manuell bediente Pumpe oder einer elektrisch betriebenen Kolbenpumpe eine Probe entnommen, die durch ein weißes Filterpapier gepreßt wird. from flue gases to soot density state of the art devices for manual or semi-automatic measurement of the soot density to determine the combustion-related Efficiencies are known. Here, the flue gas is controlled manually via a simple served Pump or an electrically operated piston pump Sample taken, which is pressed through a white filter paper.

Die Trübung des Probe streifens wird mit einem Indikatorstreifen verglichen, die eine ziemlich genaue Bestimmung der Rußdichte zuläßt.The turbidity of the sample strip is compared with an indicator strip, which allows a fairly accurate determination of the soot density.

In Verbindung mit einem CO2-Test über z.B0 ein Bacharachgerät oder anderer Geräte zur Bestimmung des C02-Wertes wird der feuerungstechnische Wirkungsgrad undioder die damit verbundene Umweltbelastung durch Emmission von Schadstoffen bestimmt.In connection with a CO2 test via e.g. a Bacharach device or of other devices for determining the C02 value is the combustion efficiency andior the associated environmental pollution is determined by the emission of pollutants.

Aufgabe: Der Erfindung liegt die Aufgabe zugrunde, in Verbindung mit einem vollautomatischen Gerät zur Bestimmung des C02-Wertes von Rauchgasen kontinbierlich oder in Intervallen die Rauchgasprobe, die einer Meßkammer mit einem C02-Sensor (als Donator oder Akzeptator arbeitend) zugeführt wird, auf ihre Rußdichte zu messen, anzuzeigen und ein analoges Ausgangssignal auszugeben.Task: The invention is based on the task in connection with a fully automatic device for determining the C02 value of smoke gases continuously or at intervals the smoke gas sample, that of a measuring chamber with a C02 sensor (working as a donor or acceptor) is fed to measure its soot density, and output an analog output signal.

LösunR: In der Boden- oder Kopfplatte der Meßkammer ist als Meßstrecke ein optoelektronisches Bauelement (Lumineszenzdiode, Galliumarsenid oder Galliumphosphid) als Sender angeordnet, der ein anderes optoelektronisches Bauelement, z.B. ein Fototransistor, als Empfänger gegenüberliegt. Anordnung gemäß Fig.1.Solution: There is a measuring section in the bottom or top plate of the measuring chamber an optoelectronic component (luminescent diode, gallium arsenide or gallium phosphide) arranged as a transmitter that sends another optoelectronic component, e.g. a phototransistor, as the recipient opposite. Arrangement according to Fig.1.

Um Einflüsse sichtbaren Lichts und evtl. auftretende Wärmestrahlung des im Ultrarot liegenden Bereiches weitgehend auszuschließen, arbeitet die Meßstrecke mit einer emittierten Strahlung im nahen Infrarot liegender Wellenlänge von 950 nm.About the influences of visible light and any thermal radiation that may occur To largely exclude the area lying in the ultra-red, the measuring section works with a emitted radiation in the near infrared wavelength of 950 nm.

Um einer Verschnuitzung der Opto-Elektronik vorzubeugen, sind an der Einlaßöffnung der Meßkammer kleine Leitfahnen angeordnet, die auf der Sender- und Empfängerseite einen leichten Unterdruck erzeugen.To prevent the opto-electronics from fouling up, the Inlet opening of the measuring chamber arranged small vanes that are on the transmitter and Create a slight negative pressure on the receiving side.

Das Ausgangssignal eines Schwellwertverstärkers gemäß Fige2 wird als uberlagerungssignal einem EIauptverstärker des eigentlichen C02-eßgeräts zugeführt, Wird der eingestellte Sollwert des Schwellwertverstärkers überschritten (z.B. Rußwert 1, der Ruß-Wert ist dimensionslos), so werden entsprechende Warn- oder Steuereinrichtungen angesteuert.The output signal of a threshold amplifier according to FIG Superimposed signal fed to a main amplifier of the actual CO2 measuring device, If the set value of the threshold amplifier is exceeded (e.g. soot value 1, the soot value is dimensionless), appropriate warning or control devices are set up controlled.

LeerseiteBlank page

Claims (5)

"itußdichte I" Patentansprüche 10 Meßstrecke mit optoelektronischen Bauelementen zur Bestimmung der Rußdichte von Rauchgasen, dadurch gekennzeichnet, daß die Rauchgasprobe im Strahlungsbereich der Strecke am Empfänger ein der Trübung analoges Signal erzeugt."Iuss density I" claims 10 measuring section with optoelectronic Components for determining the soot density of flue gases, characterized in that that the smoke gas sample in the radiation area of the route at the receiver is one of the turbidity analog signal generated. 2. Arbeitsbereich bei 950 nm des Spektrums.2. Working range at 950 nm of the spectrum. 3. Anordnung der Meßstrecke in einer mit einem C02-Sensor kombinierten Meßkammer.3. Arrangement of the measuring section in a combined with a C02 sensor Measuring chamber. 4. Ausbildung der Meßkammer mit Leitschikanen zur Erzeugung eines Unterdrucks oder Überdrucks am Sender und Empfänger, um Verschmutzungen weitgehend auszuschließen.4. Formation of the measuring chamber with guide baffles to generate a Underpressure or overpressure at the transmitter and receiver to minimize soiling to exclude. 5. Ausbildung der Meßstrecke mit einer lichtleitenden Glasfiberstrecke, die ebenfalls in der Hauptmeßkammer oder in einer separaten Meßkammer angeordnet sein kann.5. Design of the measuring section with a light-guiding glass fiber section, which are also arranged in the main measuring chamber or in a separate measuring chamber can be.
DE19752511917 1975-03-19 1975-03-19 Fully electronic monitoring of flue gases - employs signal generated to determine soot density of gases and carbon di:oxide concentration Pending DE2511917A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752511917 DE2511917A1 (en) 1975-03-19 1975-03-19 Fully electronic monitoring of flue gases - employs signal generated to determine soot density of gases and carbon di:oxide concentration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752511917 DE2511917A1 (en) 1975-03-19 1975-03-19 Fully electronic monitoring of flue gases - employs signal generated to determine soot density of gases and carbon di:oxide concentration

Publications (1)

Publication Number Publication Date
DE2511917A1 true DE2511917A1 (en) 1978-04-20

Family

ID=5941741

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752511917 Pending DE2511917A1 (en) 1975-03-19 1975-03-19 Fully electronic monitoring of flue gases - employs signal generated to determine soot density of gases and carbon di:oxide concentration

Country Status (1)

Country Link
DE (1) DE2511917A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19735205A1 (en) * 1997-08-14 1999-02-25 Gustav Prof Dr Techn Schweiger Spectroscopic determination of soot in the environment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19735205A1 (en) * 1997-08-14 1999-02-25 Gustav Prof Dr Techn Schweiger Spectroscopic determination of soot in the environment

Similar Documents

Publication Publication Date Title
EP0282295B1 (en) Internal combustion engine control
CN102232183A (en) Optical detection of particle characteristics
DE2433980A1 (en) FLUORESCENT GAS ANALYZER
CN113049037B (en) Intelligent monitoring system and method for ship with excessive tail gas
CN211235528U (en) Automobile exhaust remote sensing detection system
JPH09506967A (en) Device for measuring density and concentration of visible constituents in fluids
Gallo et al. A study of in-cylinder soot oxidation by laser extinction measurements during an EGR-sweep in an optical diesel engine
CN114993987B (en) Temperature and gas concentration measuring method and system based on absorption spectrum amplitude modulation
DE2511917A1 (en) Fully electronic monitoring of flue gases - employs signal generated to determine soot density of gases and carbon di:oxide concentration
KR100408155B1 (en) Dust measuring instrument
CN208636206U (en) A kind of pollutant testing apparatus
CN201689032U (en) Greenhouse gas on-line monitoring instrument
SE539843C2 (en) Method and apparatus for determining a concentration of a substance in a liquid medium
EP4321856A1 (en) Water quality testing system
DE3279628D1 (en) Procedure for the production of a humidity-sensitive interference mirror, and procedure and equipment for the measurement of the humidity using said mirror
JPS63266342A (en) Detector for degree of deterioration of oil
DE4130639A1 (en) METHOD FOR THE QUANTITATIVE AND QUALITATIVE DETECTION OF HYDROCARBON-CARBON PARTICLES IN GASES
DE2534214A1 (en) Electronic flue gas monitor - uses semiconductor photodetector with alarm circuit to determine density of soot
GB1200038A (en) Apparatus and method for measuring the opacity of gases
CH679525A5 (en)
RU206827U1 (en) Device for express control of the presence of heavy hydrocarbon fractions in gasoline
CN214953042U (en) Automobile exhaust detection equipment based on Raman spectrum
JP3683792B2 (en) Device for measuring the amount of visible sidestream smoke in smoking articles
JPH0125017B2 (en)
JPH03242534A (en) Fine particle density measuring apparatus

Legal Events

Date Code Title Description
OHJ Non-payment of the annual fee