JP4980361B2 - 燃焼装備におけるバーナチップの汚損・腐食検出器 - Google Patents
燃焼装備におけるバーナチップの汚損・腐食検出器 Download PDFInfo
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Description
本発明は燃焼システムに関する。より具体的には、本発明は、燃焼装備システム内のバーナチップの汚損又は腐食を検出するための装置に関する。
工業プロセスにおける燃焼システムの汚損及び腐食を予測するためのシステムは、管、制限要素及び汚損・腐食検出器を含む。管は燃料を含む。制限要素は管に結合され、燃料は制限要素を通過する。汚損・腐食検出器は、管に結合され、制限要素の特徴的シグネチャを検出し、検出されたシグネチャの変化がベースラインシグネチャに対して所定の限界を超えるならばアラームを発するように適合されている。
一般に、管又は導管の中を流れる流体は、管の壁と接触すると、検出可能な音響信号を発生させる。管(たとえばベンチュリ管、バーナチップなど)内の狭窄又は妨害要素に隣接して、変化する管内径が音響反射を生じさせると、それを狭窄又は妨害要素の上流で検出することができる。たとえば、燃料がバーナチップの中を流れるとき、狭窄流路を通過する燃料流は、流れの方向に対して実質的に反対に音響反射を生じさせる。通常、この音響反射は、流量とともに変化する音響シグネチャとみなすことができる。しかし、この音響反射又はシグネチャは、汚損又は腐食が狭窄又は妨害要素に影響するにつれて変化する。汚損(表面上の望ましくない物質の付着)又は腐食(表面材料の点食又はかい食)はいずれも妨害又は狭窄要素のプロフィールの変化を生じさせて、結果として、汚損又は腐食を示す音響信号の変化を生じさせる。所定の限界を超える音響シグネチャ変化を検出することにより、システムを、汚損又は腐食に関してモニタリングし、故障する前に修理することができる。
Claims (22)
- 工業プロセスにおける燃焼システムの汚損及び腐食を予測するためのシステムであって、
燃料が流れる管と、
前記管に結合された制限要素と、及び
前記管に結合された汚損・腐食検出器と、を備え、
前記汚損・腐食検出器は、
前記制限要素の特徴的シグネチャを検出する音響変換器又は光学変換器と、
前記管内の圧力を検出する圧力変換器と、を含み、
前記音響変換器又は光学変換器により検出されたシグネチャの変化がベースラインシグネチャに対して所定の限界を超えるならば、アラームを発して前記制限要素の汚損・腐食を報知し、
前記圧力変換器により検出された前記管内の圧力に基づいて燃料供給の遮断を判別し、前記制限要素の汚損・腐食と区別するシステム。 - 前記制限要素が、前記工業プロセスの熱送達システム内のバーナチップを含む、請求項1記載のシステム。
- 前記音響変換器が、前記制限要素に反射した音響信号を前記特徴的シグネチャとして検出する、請求項1記載のシステム。
- 前記汚損・腐食検出器が、
メモリと、及び
前記音響変換器、前記圧力変換器及び前記メモリに結合され、前記音響変換器によって検出された前記特徴的シグネチャを前記メモリに記憶された前記ベースラインシグネチャに対して比較し、前記特徴的シグネチャと前記ベースラインシグネチャとの差が所定の限界を超えるならば前記アラームを発する汚損・腐食検出回路と、を含む、請求項3記載のシステム。 - 前記汚損・腐食検出器が、汚損又は腐食から独立して、前記工業プロセス内の問題を示す、バックグラウンドノイズの変化を検出する、請求項1記載のシステム。
- 前記管の上流側に、前記制限要素に対向する結合部を、前記燃料の供給路と分岐して設け、
前記結合部に前記音響変換器を結合し、前記音響変換器が、音響信号を前記制限要素に向けて発し、前記制限要素に反射した音響信号を前記特徴的シグネチャとして検出する、請求項1記載のシステム。 - 前記汚損・腐食検出器が、
前記特徴的シグネチャを分析するインテリジェントシステムを含む、請求項1記載のシステム。 - 前記音響変換器又は光学変換器により検出されたシグネチャの変化が、前記制限要素の汚損及び/又は腐食を示す、請求項1記載のシステム。
- 前記光学変換器が、前記バーナチップによって発生する火炎の光学シグネチャを前記特徴的シグネチャとして検出する、請求項2記載のシステム。
- 前記汚損・腐食検出器が、ウェーブレット技術を使用して前記特徴的シグネチャを検出する、請求項1記載のシステム。
- 前記ベースラインシグネチャを記憶するメモリを含む、請求項4記載のシステム。
- ユーザが前記所定の限界をセットすることを可能にするローカルオペレータインタフェースをさらに含む、請求項1記載のシステム。
- 工業プロセス内の燃焼装備の汚損及び腐食をモニタリングするためのシステムであって、
燃料が流れる管と、
前記管に結合され、前記燃料を前記燃焼装備に送り、前記管の一端に流れ制限部を画定するバーナチップと、
前記管に結合され、前記バーナチップの音響シグネチャを検出する音響変換器と、
前記管に結合され、前記管内の圧力を検出する圧力変換器と、及び
検出された音響シグネチャを記憶されたベースラインシグネチャに照らして処理し、検出された音響シグネチャが前記ベースラインシグネチャから所定の量を超えて異なるならば、アラーム信号を発して前記流れ制限部の汚損・腐食を報知し、
前記圧力変換器により検出された前記管内の圧力に基づいて燃料供給の遮断を判別し、前記流れ制限部の汚損・腐食と区別する回路と、
を含むシステム。 - 前記音響シグネチャが、前記バーナチップ中を流れる燃料によって生じる検出可能な音響信号を含む、請求項13記載のシステム。
- 前記管の上流側に、前記流れ制限部に対向する結合部を、前記燃料の供給路と分岐して設け、
前記結合部に前記音響変換器を結合し、前記音響変換器が、音響信号を前記流れ制限部に向けて発し、前記流れ制限部に反射した音響信号を前記音響シグネチャとして検出する、請求項13記載のシステム。 - 前記バーナチップが汚損又は腐食するにつれ前記反射が変化する、請求項15記載のシステム。
- 前記回路に結合され、検出された音響シグネチャを分析して前記バーナチップの汚損及び/又は腐食を予測するインテリジェントシステムをさらに含む、請求項13記載のシステム。
- 前記回路に結合され、前記ベースライン音響シグネチャを記憶するメモリをさらに含む、請求項13記載のシステム。
- 工業プロセスにおける燃焼装備内のバーナの汚損及び腐食を検出するためのシステムであって、
燃料が流れる管セグメント及び前記管セグメントに結合されたバーナチップをそれぞれが含む複数の管セクションと、
それぞれが前記複数の管セクションの一つに結合され、前記バーナチップの音響シグネチャを検出するように適合された複数の音響検出器と、
それぞれが前記複数の管セクションの一つに結合され、前記管内の圧力を検出する複数の圧力検出器と、
複数のバーナチップそれぞれに対応する複数のベースラインシグネチャを記憶するメモリと、及び
前記複数の音響検出器及び前記複数の圧力検出器に結合された共通の電子部品と、を含み、
前記共通の電子部品が、
前記複数の音響検出器によって検出された前記音響シグネチャを、複数のバーナチップそれぞれに対応するベースラインシグネチャに照らして処理し、特定のバーナチップの汚損及び/又は腐食を、前記特定のバーナチップの前記音響シグネチャの、そのベースラインシグネチャとで比較した場合の変化に基づいて予測し、
前記圧力検出器により検出された前記管内の圧力に基づいて燃料供給の遮断を判別し、前記バーナチップの汚損及び腐食と区別するシステム。 - 前記複数の管セクションぞれぞれの上流側に、前記バーナチップに対向する結合部を、前記燃料の供給路と分岐して設け、
前記結合部それぞれに前記音響検出器を結合し、前記音響検出器それぞれが、音響信号を前記バーナチップに向けて発し、前記バーナチップに反射した音響信号を前記音響シグネチャとして検出する、請求項19記載のシステム。 - 前記共通の電子部品に結合され、各バーナチップの前記ベースラインシグネチャを記憶するメモリをさらに含む、請求項19記載のシステム。
- 前記共通の電子部品が、ウェーブレット技術を使用して各音響シグネチャを処理する、請求項19記載のシステム。
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US11/238,658 US8469700B2 (en) | 2005-09-29 | 2005-09-29 | Fouling and corrosion detector for burner tips in fired equipment |
US11/238,658 | 2005-09-29 | ||
PCT/US2006/036399 WO2007040979A2 (en) | 2005-09-29 | 2006-09-19 | Fouling and corrosion detector for burner tips in fired equipment |
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JP6188167B2 (ja) * | 2012-07-27 | 2017-08-30 | ゼネラル・エレクトリック・カンパニイ | 流体ストリーム中の汚染物質検出のためのシステムおよび方法 |
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JP2009510437A (ja) | 2009-03-12 |
EP1929275B1 (en) | 2012-05-02 |
EP1929275A2 (en) | 2008-06-11 |
WO2007040979A3 (en) | 2007-07-05 |
CN101273260A (zh) | 2008-09-24 |
US8469700B2 (en) | 2013-06-25 |
RU2429416C2 (ru) | 2011-09-20 |
RU2008116843A (ru) | 2009-11-10 |
CN101273260B (zh) | 2012-12-12 |
US20070072137A1 (en) | 2007-03-29 |
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