WO2012126469A1 - Capteur de gaz doté d'un vortex - Google Patents

Capteur de gaz doté d'un vortex Download PDF

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Publication number
WO2012126469A1
WO2012126469A1 PCT/DK2012/000026 DK2012000026W WO2012126469A1 WO 2012126469 A1 WO2012126469 A1 WO 2012126469A1 DK 2012000026 W DK2012000026 W DK 2012000026W WO 2012126469 A1 WO2012126469 A1 WO 2012126469A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
sensor
gas sensor
measurement region
sight
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.)
Ceased
Application number
PCT/DK2012/000026
Other languages
English (en)
Inventor
Per Romedahi CHRISTENSEN
Jens Møller JENSEN
Oluf Sigh OLESEN
Poul Kodahl SØRENSEN
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.)
Danfoss Ixa AS
Green Instruments AS
Original Assignee
Danfoss Ixa AS
Green Instruments AS
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 Danfoss Ixa AS, Green Instruments AS filed Critical Danfoss Ixa AS
Publication of WO2012126469A1 publication Critical patent/WO2012126469A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N21/05—Flow-through cuvettes
    • 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
    • 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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N2021/0389—Windows
    • 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
    • G01N2021/151—Gas blown

Definitions

  • the invention relates to a gas sensor comprising a gas measurement region such designed that the flow of gas in the region intrinsically serves to keep specific internal surfaces free of residues, e.g. soot particles.
  • a gas measurement region such designed that the flow of gas in the region intrinsically serves to keep specific internal surfaces free of residues, e.g. soot particles.
  • means are introduced ensuring a non-direct path of the gas in its flow from one end of the measurement region to the other, such as by transferring it into a vortex letting the gas whirl from one end of the measurement chamber to the other, by forming a turbulent flow of the gas, etc..
  • BACKGROUND Gas sensors configured to measure as a gas bases on absorption bands of bands of radiation characteristic to the gas of interest is widely known, for example as disclosed in WO10118748A describing a sensor having a filter arrangement, downstream of which there is arranged a detector arrangement, and an evaluating device which is connected to the detector arrangement, the filter arrangement has at least a first filter, the suspect filter, which is configured as a band pass filter allowing the passage of a first predetermined band, the suspect band, at least one second filter, the reference filter(s), which is configured as a band pass filter allowing the passage of a second
  • an embodiment further introduces at least one sight glass positioned in a manner the detector sealed from the measurement region, and it is especially suited that the sight glass is fixed to the first sight tube in a manner where an gas tight internal enclosure of the first sight tube is defined separating the detector from the measurement region.
  • a second sight glass is fixed to the first sight tube in a manner where a gas tight internal enclosure of the first sight tube is defined separating the detector from the measurement region. Then the internal enclosure is filled with a gas inert to the gas to be measured.
  • the hollow tube may with advantage be the porous structure, the bores or recesses being the inlet and outlet openings
  • a flow of gas in the measuring region may induced by means of vacuum or pumping by means also positioned within or at least attached to the sensor container.
  • the recesses (104a) and (104b) in the preferred but not exclusive embodiment is formed in the end-surfaces (103a) and (103b), but may be formed as bores in the walls of the hollow tube (100).

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)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

La présente invention a trait à un capteur de gaz qui comprend une région de mesure de gaz qui est conçue de manière à ce que l'écoulement de gaz dans la région permette de façon intrinsèque de conserver les surfaces intérieures spécifiques libres de tous résidus, par exemple des particules de suie. Pour ce faire, un moyen est introduit de manière à garantir un chemin non direct du gaz dans son écoulement depuis une extrémité de la région de mesure jusqu'à l'autre extrémité, par exemple en le transférant dans un vortex de manière à laisser le gaz tourbillonner depuis une extrémité de la chambre de mesure jusqu'à l'autre extrémité, en formant un écoulement turbulent du gaz, etc.
PCT/DK2012/000026 2011-03-23 2012-03-21 Capteur de gaz doté d'un vortex Ceased WO2012126469A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA201100209 2011-03-23
DKPA201100209 2011-03-23

Publications (1)

Publication Number Publication Date
WO2012126469A1 true WO2012126469A1 (fr) 2012-09-27

Family

ID=45936601

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2012/000026 Ceased WO2012126469A1 (fr) 2011-03-23 2012-03-21 Capteur de gaz doté d'un vortex

Country Status (1)

Country Link
WO (1) WO2012126469A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017144507A1 (fr) 2016-02-22 2017-08-31 Danmarks Tekniske Universitet Dispositif et procédé de mesure de goudron dans un environnement de goudron
WO2018173625A1 (fr) * 2017-03-22 2018-09-27 スチールプランテック株式会社 Appareil de mesure d'un constituant de gaz
CN111366513A (zh) * 2020-04-24 2020-07-03 青岛明德环保仪器有限公司 一种激光散射检测颗粒物的气幕保护装置
CN112394046A (zh) * 2019-08-19 2021-02-23 横河电机株式会社 气体分析仪
EP3929566A1 (fr) * 2020-06-24 2021-12-29 Kidde Technologies, Inc. Système de mesure de la concentration d'un agent d'extinction d'incendie et procédé de mesure d'un agent d'extinction d'incendie dans un environnement

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4443072A (en) * 1982-04-05 1984-04-17 The United States Of America As Represented By The United States Department Of Energy Purged window apparatus utilizing heated purge gas
US4779970A (en) * 1985-12-19 1988-10-25 Adolph Coors Company Moisture control system
WO1989002069A1 (fr) * 1987-09-04 1989-03-09 Rosemount Inc. Systeme a air de purge asymetrique permettant le nettoyage d'une lentille
DE19601873A1 (de) * 1995-03-04 1996-09-05 Horiba Ltd Gasanalysator
EP0733897A2 (fr) * 1995-03-22 1996-09-25 Vaisala Oy Procédé pour le calibrage d'un appareillage ou moyen NDIR et installation de calibrage
US20050173635A1 (en) * 2004-02-09 2005-08-11 Smith Patrick G. Gas detector
WO2010118749A1 (fr) 2009-04-17 2010-10-21 Danfoss Ixa A/S Détecteur de gaz avec regard de filtration
WO2010118748A1 (fr) 2009-04-17 2010-10-21 Danfoss Ixa A/S Capteurs utilisant des filtres passe-bande
DE102009029949B3 (de) * 2009-06-19 2011-01-05 Siemens Aktiengesellschaft Beheizbare Durchflussmesszelle

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4443072A (en) * 1982-04-05 1984-04-17 The United States Of America As Represented By The United States Department Of Energy Purged window apparatus utilizing heated purge gas
US4779970A (en) * 1985-12-19 1988-10-25 Adolph Coors Company Moisture control system
WO1989002069A1 (fr) * 1987-09-04 1989-03-09 Rosemount Inc. Systeme a air de purge asymetrique permettant le nettoyage d'une lentille
DE19601873A1 (de) * 1995-03-04 1996-09-05 Horiba Ltd Gasanalysator
EP0733897A2 (fr) * 1995-03-22 1996-09-25 Vaisala Oy Procédé pour le calibrage d'un appareillage ou moyen NDIR et installation de calibrage
US20050173635A1 (en) * 2004-02-09 2005-08-11 Smith Patrick G. Gas detector
WO2010118749A1 (fr) 2009-04-17 2010-10-21 Danfoss Ixa A/S Détecteur de gaz avec regard de filtration
WO2010118748A1 (fr) 2009-04-17 2010-10-21 Danfoss Ixa A/S Capteurs utilisant des filtres passe-bande
DE102009029949B3 (de) * 2009-06-19 2011-01-05 Siemens Aktiengesellschaft Beheizbare Durchflussmesszelle

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017144507A1 (fr) 2016-02-22 2017-08-31 Danmarks Tekniske Universitet Dispositif et procédé de mesure de goudron dans un environnement de goudron
WO2018173625A1 (fr) * 2017-03-22 2018-09-27 スチールプランテック株式会社 Appareil de mesure d'un constituant de gaz
JP2018159562A (ja) * 2017-03-22 2018-10-11 スチールプランテック株式会社 ガス成分測定装置
US11454568B2 (en) 2017-03-22 2022-09-27 Jp Steel Plantech Co. Gas component measuring device
CN112394046A (zh) * 2019-08-19 2021-02-23 横河电机株式会社 气体分析仪
EP3783337A1 (fr) * 2019-08-19 2021-02-24 Yokogawa Electric Corporation Analyseur de gaz
JP2021032597A (ja) * 2019-08-19 2021-03-01 横河電機株式会社 ガス分析計
JP7099416B2 (ja) 2019-08-19 2022-07-12 横河電機株式会社 ガス分析計
CN111366513A (zh) * 2020-04-24 2020-07-03 青岛明德环保仪器有限公司 一种激光散射检测颗粒物的气幕保护装置
EP3929566A1 (fr) * 2020-06-24 2021-12-29 Kidde Technologies, Inc. Système de mesure de la concentration d'un agent d'extinction d'incendie et procédé de mesure d'un agent d'extinction d'incendie dans un environnement
US11280731B2 (en) 2020-06-24 2022-03-22 Kidde Technologies, Inc. Fire extinguishing agent concentration measuring system and method of measuring a fire extinguishing agent within an environment

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