JP4339049B2 - 排ガス処理方法及び排ガス処理装置 - Google Patents
排ガス処理方法及び排ガス処理装置 Download PDFInfo
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- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
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- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/01—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust by means of electric or electrostatic separators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- General Engineering & Computer Science (AREA)
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- Electrostatic Separation (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Description
あるいは、上記目的を達成するための本発明の排ガス処理方法は、高電圧電極と該高電圧電極に対向して配置され、筒体で形成された低電圧電極とを備え、前記低電圧電極の少なくとも上流側部分の帯電部において、前記筒体の低電圧電極の中心付近に沿って長手方向に前記高電圧電極を配置し、かつ、前記帯電部の下流側の濃縮部において、前記低電圧電極を通気可能に形成し、更に、前記濃縮部の下流側の分流部を設け、前記濃縮部と前記分流部において、前記低電圧電極の外側に外筒を設けた排ガス処理装置の排気ガス処理方法であって、対向電極間に排ガスを流通させ、該対向電極間に高電圧を印加して排ガス中にコロナ放電を発生させ、該コロナ放電によって前記排ガス中の浮遊微粒子物質を帯電・凝集して、静電気力により低電圧電極に引き寄せることにより前記低電圧電極近傍に偏在させ、前記浮遊微粒子物質の濃度が相対的に高くなった高濃度排ガスを排ガス分流用の筒体である前記低電圧電極の外側に流し、前記浮遊微粒子物資の濃度が相対的に低くなった低濃度排ガスを前記低電圧電極の内側に流して分流することを特徴とする方法である。
11 低電圧電極
12 高電圧電極
13 内筒
14 外筒
20 浮遊微粒子物質
G 排ガス
Ga 低濃度排ガス
Gb 高濃度排ガス
Z0 放電部
Z1 帯電部
Z2 濃縮部
Z3 分流部
Claims (7)
- 高電圧電極と、該高電圧電極に対向して配置され、かつ、筒体で形成された低電圧電極とを備え、該低電圧電極の少なくとも上流側部分の帯電部において、前記筒体の低電圧電極の中心付近に沿って長手方向に前記高電圧電極を配置した排ガス処理装置の排気ガス処理方法であって、対向電極間に排ガスを流通させ、放電部で該対向電極間に高電圧を印加して排ガス中にコロナ放電を発生させ、前記帯電部で該コロナ放電によって前記排ガス中の浮遊微粒子物質を帯電・凝集して、前記放電部の下流側の濃縮部で、前記低電圧電極近傍に偏在させ、前記濃縮部の下流の分流部において、前記低電圧電極の内側に設けた排ガス分流用の内筒の内側に前記低濃度排ガスが流れ、該内筒の外側に前記高濃度排ガスが流れるようにして、両電極間に流通させた排ガスを、前記低電圧電極近傍を流れる排ガスと前記低電圧電極の中心部を流れる排ガスとに分流させることを特徴とする排ガス処理方法。
- 高電圧電極と該高電圧電極に対向して配置され、筒体で形成された低電圧電極とを備え、前記低電圧電極の少なくとも上流側部分の帯電部において、前記筒体の低電圧電極の中心付近に沿って長手方向に前記高電圧電極を配置し、かつ、前記帯電部の下流側の濃縮部において、前記低電圧電極を通気可能に形成し、更に、前記濃縮部の下流側の分流部を設け、前記濃縮部と前記分流部において、前記低電圧電極の外側に外筒を設けた排ガス処理装置の排気ガス処理方法であって、対向電極間に排ガスを流通させ、該対向電極間に高電圧を印加して排ガス中にコロナ放電を発生させ、該コロナ放電によって前記排ガス中の浮遊微粒子物質を帯電・凝集して、静電気力により低電圧電極に引き寄せることにより前記低電圧電極近傍に偏在させ、前記浮遊微粒子物質の濃度が相対的に高くなった高濃度排ガスを排ガス分流用の筒体である前記低電圧電極の外側に流し、前記浮遊微粒子物資の濃度が相対的に低くなった低濃度排ガスを前記低電圧電極の内側に流して分流することを特徴とする排ガス処理方法。
- 前記高濃度排ガスをフィルタで浄化することを特徴とする請求項1又は2に記載の排ガス浄化方法。
- 高電圧電極と該高電圧電極に対向して配置された低電圧電極とを備え、対向電極間に排ガスを流通させ、該対向電極間に高電圧を印加して排ガス中にコロナ放電を形成し、浮遊微粒子物質を帯電させる帯電部と、該帯電部によって帯電された前記浮遊微粒子物質を前記低電圧電極近傍に偏在させる濃縮部と、前記対向電極間に流通させた排ガスを、前記浮遊微粒子物質の濃度が相対的に高くなった高濃度排ガスと、前記浮遊微粒子物資の濃度が相対的に低くなった低濃度排ガスとに分流する分流部とを有して構成し、更に、前記低電圧電極を筒体で形成し、該低電圧電極の少なくとも上流側部分の帯電部において、前記筒体の低電圧電極の中心付近に沿って長手方向に前記高電圧電極を配置すると共に、前記濃縮部の下流の分流部において、前記低電圧電極の内側に排ガス分流用の内筒を設け、該内筒はその内側に前記低濃度排ガスが流れ、該内筒の外側に前記高濃度排ガスが流れるように配置して、両電極間に流通させた排ガスを、前記低電圧電極近傍を流れる排ガスと前記低電圧電極の中心部を流れる排ガスとに分流させることを特徴とする排ガス処理装置。
- 高電圧電極と該高電圧電極に対向して配置された低電圧電極とを備え、対向電極間に排ガスを流通させ、該対向電極間に高電圧を印加して排ガス中にコロナ放電を形成し、浮遊微粒子物質を帯電させる帯電部と、該帯電部によって帯電された前記浮遊微粒子物質を前記低電圧電極近傍に偏在させる濃縮部と、前記浮遊微粒子物質の濃度が相対的に高くなった前記低電圧電極近傍の排ガスを、前記浮遊微粒子物質の濃度が相対的に高くなった高濃度排ガスと、前記浮遊微粒子物資の濃度が相対的に低くなった低濃度排ガスとに分流する分流部とを有して構成し、更に、前記低電圧電極を筒体で形成し、該低電圧電極の少なくとも上流側部分の帯電部において、前記筒体の低電圧電極の中心付近に沿って長手方向に前記高電圧電極を配置し、前記帯電部の下流側の前記濃縮部において、前記低電圧電極を通気可能に形成すると共に、前記濃縮部と前記分流部において、前記低電圧電極の外側に外筒を設け、前記低電圧電極の上流側から流入する排ガスを、前記低電圧電極の内側を流れる前記低濃度排ガスと、該低電圧電極の外側を流れる前記高濃度排ガスに分けるように構成したことを特徴とする排ガス処理装置。
- 前記高濃度排ガス中に含まれる浮遊微粒子物質を浄化するフィルタを設けたことを特徴とする請求項4又は5のいずれか1項に記載の排ガス浄化装置。
- 前記排ガスが内燃機関の排気ガスであることを特徴とする請求項4〜6のいずれか1項に記載の排ガス浄化装置。
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EP04772218A EP1669562A1 (en) | 2003-08-29 | 2004-08-26 | Exhaust gas processing method and exhaust gas processing system |
PCT/JP2004/012262 WO2005021940A1 (ja) | 2003-08-29 | 2004-08-26 | 排ガス処理方法及び排ガス処理装置 |
US10/569,841 US20070000236A1 (en) | 2003-08-29 | 2004-08-26 | Exhaust gas processing method and exhaust gas processing system |
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US20100018850A1 (en) * | 2008-07-28 | 2010-01-28 | Caterpillar Inc. | System for removing particulate matter from exhaust streams |
DE102008057960A1 (de) | 2008-11-19 | 2010-05-20 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Anordnung und Verfahren zur Reinigung eines Abgasstromes einer Verbrennungskraftmaschine durch die Abscheidung von Partikeln |
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