JP6529975B2 - 過酷な環境におけるtdlas測定のポート妨害を監視するための方法および装置 - Google Patents
過酷な環境におけるtdlas測定のポート妨害を監視するための方法および装置 Download PDFInfo
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- 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
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- 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
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- 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
- F23M11/042—Viewing ports of windows
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- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
- F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
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- 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
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- 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
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
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- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
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- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
- G01N21/716—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited by measuring the radiation emitted by a test object treated by combustion gases for investigating the composition of gas mixtures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2231/00—Fail safe
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- 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
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- 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
- G01N2021/152—Scraping; Brushing; Moving band
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- 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
- G01N2021/155—Monitoring cleanness of window, lens, or other parts
- G01N2021/157—Monitoring by optical means
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- 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
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
- G01N2021/396—Type of laser source
- G01N2021/399—Diode laser
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- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N2021/8411—Application to online plant, process monitoring
- G01N2021/8416—Application to online plant, process monitoring and process controlling, not otherwise provided for
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
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- G01N2201/066—Modifiable path; multiple paths in one sample
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- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/08—Optical fibres; light guides
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/08—Optical fibres; light guides
- G01N2201/0826—Fibre array at source, distributing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/08—Optical fibres; light guides
- G01N2201/0833—Fibre array at detector, resolving
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Description
本特許文献の開示の一部分は、著作権保護を受ける事柄を含んでいる。著作権所有者は、特許商標局の特許ファイルまたは記録中にそれが現れるような本特許文献または本特許開示の何人かによる複製にも異議はないが、それ以外のすべての一切の著作権の権利を確保する。
Claims (17)
- プロセスチャンバの壁に取り付けられた視認管の妨害を監視する方法であって、前記視認管は、前記視認管とTDLAS光ヘッドとの間のウィンドウとともに前記TDLAS光ヘッドに動作可能に結合され、前記方法は、
フォトセンサにより生成され、かつ、前記プロセスチャンバ内の燃焼によって放射された光を示す放射信号を監視するステップを含み、
前記フォトセンサはTDLAS光ヘッド内に配置され、
前記方法は、
事前の放射信号の履歴との前記放射信号の比較に基づき、前記放射信号が劣化しているかどうかを判定するステップを含む、方法。 - 前記放射信号が劣化していると判定された場合に、前記視認管のクリアを開始するステップ
をさらに含む、請求項1に記載の方法。 - 前記視認管のクリアの後に、前記放射信号が強化されているかどうかを判定するステップ
をさらに含む、請求項2に記載の方法。 - 前記放射信号が強化されていないと判定された場合に、ウィンドウクリーニングを開始するステップ
をさらに含む、請求項3に記載の方法。 - 前記放射信号が劣化していないと判定された場合に、前記TDLAS光ヘッドにより放射されたTDLASレーザー信号が劣化しているかどうかを判定するステップ
をさらに含む、請求項1に記載の方法。 - 前記TDLASレーザー信号が劣化していると判定された場合に、前記TDLAS光ヘッドの光学素子を整合させるステップ
をさらに含む、請求項5に記載の方法。 - 前記TDLAS光ヘッドの前記光学素子の整合の後に前記TDLASレーザー信号がまだ劣化しているかどうかを判定するステップと、
前記TDLAS光ヘッドから放出された前記TDLASレーザー信号がまだ劣化している場合に、前記プロセスチャンバ内の不透明度の存在を示す高不透明度信号を生成するステップと
をさらに含む、請求項6に記載の方法。 - クリアを開始する前記ステップは、物理的妨害をクリアするためにポートロッダーが作動するステップを含む、請求項2に記載の方法。
- 前記ポートロッダーが作動するステップの後に、前記放射信号が強化されているかどうかを判定するステップをさらに含む、請求項8に記載の方法。
- 前記放射信号が強化されていない場合、物理的妨害をクリアするためにブローダウンを開始するステップをさらに含む、請求項9に記載の方法。
- プロセスチャンバの少なくとも1つの壁に取り付けられた複数の視認管における妨害を監視する方法であって、各視認管は、前記視認管とTDLAS光ヘッドとの間のウィンドウとともに前記TDLAS光ヘッドに動作可能に結合され、
フォトセンサにより生成され、かつ、前記プロセスチャンバ内の燃焼によって放射された光を表す放射信号を監視するステップを含み、前記フォトセンサは前記TDLAS光ヘッドに配置され、
前記方法は、
前記各フォトセンサのうちの1つによって受信された放射信号が劣化しているかどうかを、前記フォトセンサのうちの1つからの事前の放射信号の履歴との前記放射信号の比較に基づき、判定するステップと、
前記1つのフォトセンサによって受信された前記放射信号が劣化していると判定された場合に、他のフォトセンサによって受信されたそれぞれの放射信号が劣化しているかどうかを判定する、ステップと、
を含む、方法。 - 前記他のフォトセンサによって受信された前記放射信号が劣化していると判定された場合に、
前記フォトセンサのうちの1つからの事前の放射信号の履歴との前記放射信号の比較に基づき、前記フォトセンサのうちの1つによって受信された放射信号が劣化しているかどうかを判定するステップと、
前記1つのフォトセンサによって受信された前記放射信号が劣化していると判定された場合に、前記他のフォトセンサによって受信された前記放射信号のそれぞれが劣化しているかどうかを判定する、ステップと、
を繰り返すステップ、をさらに含む、請求項11に記載の方法。 - 前記他のフォトセンサによって受信された前記放射信号が劣化していないと判定された場合に、前記1つのフォトセンサに結合された前記視認管のクリアを開始するステップをさらに含む、請求項11に記載の方法。
- プロセスチャンバの壁に取り付けられた視認管への取付けのために構成されたハウジングと、
前記ハウジングが取り付けられた視認管を通してプロセスチャンバ内でTDLASビームを送信、受信、または送信と受信の両方を行うための前記ハウジング内の光学素子と、
前記ハウジングが取り付けられたプロセスチャンバ内の燃焼によって放射された光を受信するために配置された前記ハウジング中のフォトセンサと
を備えるTDLAS光ヘッド。 - 前記TDLAS光ヘッドから放射されたTDLASレーザー信号が劣化しているかどうかを判定するステップと、
前記TDLAS光ヘッドから放射されたTDLASレーザー信号が劣化していると判定された場合に、前記TDLASレーザー光ヘッドの再整合を開始するステップと、
をさらに含む、請求項11に記載の方法。 - 再整合を開始するステップの後に、前記複数のフォトセンサのうちの1つからの前記放射信号が強化していないと判定された場合に、前記プロセスチャンバ内の不透明度の存在を示す高不透明度信号を生成するステップ、
を含む、請求項15に記載の方法。 - TDLAS光ヘッドから放射されたTDLASレーザー信号が劣化しているかどうか判定するステップと、
前記TDLAS光ヘッドから放射された前記TDLASレーザー信号が劣化していないと判定された場合に、
前記フォトセンサの1つからの事前の放射信号の履歴と比較した前記放射信号に基づき、前記フォトセンサの1つから受信された前記放射信号が劣化しているかを判定するステップと、
前記一つのフォトセンサにより受信された放射信号が劣化していると判定された場合に、他のフォトセンサにより受信されたそれぞれの放射信号が劣化しているかどうかを判定するステップと、
を繰り返すステップを含む、請求項11に記載の方法。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361919228P | 2013-12-20 | 2013-12-20 | |
| US61/919,228 | 2013-12-20 | ||
| PCT/US2014/071839 WO2015095861A1 (en) | 2013-12-20 | 2014-12-22 | Method and apparatus for monitoring port blockage for tdlas measurements in harsh environments |
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| JP2019091820A Expired - Fee Related JP6746754B2 (ja) | 2013-12-20 | 2019-05-15 | 過酷な環境におけるtdlas測定のポート妨害を監視するための方法および装置 |
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| US (2) | US10371378B2 (ja) |
| EP (1) | EP3084306B1 (ja) |
| JP (2) | JP6529975B2 (ja) |
| KR (1) | KR102291864B1 (ja) |
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| WO2015095861A1 (en) | 2015-06-25 |
| EP3084306B1 (en) | 2021-06-02 |
| US20160313003A1 (en) | 2016-10-27 |
| CN105917170B (zh) | 2019-12-24 |
| EP3084306A1 (en) | 2016-10-26 |
| KR102291864B1 (ko) | 2021-08-23 |
| EP3084306A4 (en) | 2017-08-23 |
| CA2934271C (en) | 2022-05-31 |
| US10948184B2 (en) | 2021-03-16 |
| US20190301737A1 (en) | 2019-10-03 |
| CN105917170A (zh) | 2016-08-31 |
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