JP7389016B2 - 粒子検出装置および浮遊粒子検出方法 - Google Patents
粒子検出装置および浮遊粒子検出方法 Download PDFInfo
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Description
Claims (14)
- 流体ストリーム中の浮遊粒子を分離によって検出するために配置されたチャネル構造を備える粒子検出装置であって、前記チャネル構造が、入口から出口まで延びる流体流路を形成し、前記流体流路は複数の流れチャネルを含み、前記複数の流れチャネルの入口流れチャネルは前記入口に接続され、前記複数の流れチャネルの出口流れチャネルは前記出口に接続されており、
前記粒子検出装置が、前記チャネル構造の前記流体流路を通る流体ストリームを実現するためのポンプまたはファンを含む受容装置に接続可能であり、
前記入口流れチャネルが、前記入口から、前記入口流れチャネルを少なくとも1つの主流チャネルと少なくとも1つの副流チャネルに分岐させるために配置された第1の分離部まで延び、前記第1の分離部が、前記流体ストリームを、前記少なくとも1つの主流チャネル内の小流と前記少なくとも1つの副流チャネル内の大流とに分離するように構成され、前記少なくとも1つの主流チャネル内の前記小流が第1の所定サイズを超える粒子の大部分を含み、前記少なくとも1つの副流チャネル内の前記大流が前記第1の所定サイズを超える粒子の小部分を含み、
前記少なくとも1つの主流チャネルまたは前記少なくとも1つの副流チャネルのうちの少なくとも1つが、粒子を検出するために配置された1つ以上の検出器を備え、
前記チャネル構造の少なくとも一つの流れチャネルにおいて、チョーク流れ規制部が配され、該チョーク流れ規制部は、使用中に、圧力条件に依存せず、前記流体流路内の一定の流れを実現するためにチョーク流れを供給するように構成された、粒子検出装置。 - 前記チョーク流れ規制部が、前記出口流れチャネル内に配置される、請求項1に記載の粒子検出装置。
- 前記チョーク流れ規制部が、50から300マイクロメートルの水力直径を有するチャネル狭窄部によって得られる、請求項1または2に記載の粒子検出装置。
- 前記チョーク流れ規制部の前記水力直径を調整するための手段を更に備える、請求項3に記載の粒子検出装置。
- 前記チャネル構造が、前記第1の分離部の下流に少なくとも1つの別の分離部を含み、前記別の分離部が、前記第1の分離部の前記少なくとも1つの主流チャネルまたは前記少なくとも1つの主流チャネルに接続されたチャネルを、少なくとも1つの別の主流チャネルおよび少なくとも1つの別の副流チャネルに分岐させるために配置され、前記別の分離部が、前記流体ストリームを、前記少なくとも1つの別の主流チャネル内の小流と前記少なくとも1つの別の副流チャネル内の大流とに分離するように構成され、前記少なくとも1つの別の主流チャネル内の前記小流が、第2の所定サイズを超える粒子の大部分を含み、前記少なくとも1つの別の副流チャネル内の前記大流が、前記第2の所定サイズを超える粒子の小部分を含み、前記少なくとも1つの別の主流チャネルまたは前記少なくとも1つの別の副流チャネルのうちの少なくとも1つが、粒子を検出するために配置された1つ以上の検出器を備える、請求項1から4の何れか1つに記載の粒子検出装置。
- 前記1つ以上の検出器が、櫛歯型静電容量センサを含む、請求項1から5の何れか1つに記載の粒子検出装置。
- 粒子を前記検出器に向かって案内するために、案内要素が検出器位置で使用される、請求項1から6の何れか1つに記載の粒子検出装置。
- 前記案内要素が、流れチャネル高さの0.1から0.7倍の高さを有する突起によって形成される、請求項7に記載の粒子検出装置。
- 前記粒子検出装置が、前記チャネル構造の前記流体流路を通る流体ストリームを実現するためのポンプまたはファンを含む受容装置に接続される、請求項1から8の何れか1つに記載の粒子検出装置。
- 前記チャネル構造が、前記受容装置に取り外し可能に接続される、請求項9に記載の粒子検出装置。
- 前記1つ以上の検出器の少なくとも一部が、気体の濃度測定を可能にするために、気体の存在に反応するように構成された応答性コーティングを有する、請求項1から10の何れか1つに記載の粒子検出装置。
- 請求項1から11の何れか1つに記載の粒子検出装置を1つ以上備え、さらに1つ以上の検出器によって得られたデータを読み出すための手段を含む読み取り装置を備える粒子検出システムであって、前記1つ以上の粒子検出装置が、前記読み取り装置に取り外し可能に接続される、粒子検出システム。
- 入口から出口まで延びる流体流路を形成するチャネル構造を使用することによって達成される分離により、流体ストリーム中の浮遊粒子を検出する方法であって、前記流体流路は複数の流れチャネルを含み、前記複数の流れチャネルの入口流れチャネルは前記入口に接続され、前記複数の流れチャネルの出口流れチャネルは前記出口に接続されており、前記チャネル構造が、前記チャネル構造の前記流体流路を通る流体ストリームを実現するためのポンプまたはファンを含む受容装置に接続可能であり、前記方法が、
前記入口流れチャネルを少なくとも1つの主流チャネルと少なくとも1つの副流チャネルに分岐させることによって、前記流体ストリームを、前記少なくとも1つの主流チャネル内の小流と前記少なくとも1つの副流チャネル内の大流とに分離するための第1の分離部を設ける工程であって、前記少なくとも1つの主流チャネル内の前記小流が第1の所定サイズを超える粒子の大部分を含み、前記少なくとも1つの副流チャネル内の前記大流が前記第1の所定サイズを超える粒子の小部分を含む、工程と、
粒子を検出するために、前記少なくとも1つの主流チャネルまたは前記少なくとも1つの副流チャネルのうちの少なくとも1つ内に、1つ以上の検出器を設ける工程と、
前記チャネル構造の少なくとも1つの流れチャネルに、使用中に、圧力条件に依存しない一定の流れを実現するためにチョーク流れを供給するように構成されたチョーク流れ規制部を配する工程と、を含む方法。 - 前記チョーク流れ規制部の水力直径が、検出されるべき粒子に基づいて選択される、請求項13の何れか1つに記載の方法。
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