JPH0321313A - Exhaust gas filter - Google Patents
Exhaust gas filterInfo
- Publication number
- JPH0321313A JPH0321313A JP1155353A JP15535389A JPH0321313A JP H0321313 A JPH0321313 A JP H0321313A JP 1155353 A JP1155353 A JP 1155353A JP 15535389 A JP15535389 A JP 15535389A JP H0321313 A JPH0321313 A JP H0321313A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- filter
- particulates
- diffusers
- diffuser
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims abstract description 11
- 239000000919 ceramic Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 description 29
- 238000004080 punching Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Processes For Solid Components From Exhaust (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は排ガスを浄化するフィル久 特にディーゼル排
ガス中に含まれるパーティキュレートを除去する排ガス
フィルタに関すん
従来の技術
近風 ディーゼルエンジンから排出される大気汚染物質
の規制を強化する傾向がみられも 特に黒煙規制にかわ
り、煤を含む微粒子（バーディキュレート）を規制しよ
うとしていも このパーティキュレートを除去する方法
として｛よ 排気管の途中に耐熱性のフィルタを設ける
のが一般的であん このフィルタにはセラミックハニカ
ムが用いられ 隣接するハニカムセル−の端部が交互に
閉塞されており、排ガスは開口したハニカムセルに流入
して、そのハニカムの壁を通過して隣りのハニカムセル
に移ってフィルタから流出すも そのときハニカムセル
の壁でパーティキュレートが濾別され除去されるのであ
る。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an exhaust gas filter for purifying exhaust gas, and in particular to an exhaust gas filter for removing particulates contained in diesel exhaust gas. Although there is a tendency to tighten regulations on pollutants, especially in place of black smoke regulations, attempts are being made to regulate particulates containing soot (verdiculates). Generally, a filter is provided. This filter uses a ceramic honeycomb, and the ends of adjacent honeycomb cells are alternately closed, and the exhaust gas flows into the open honeycomb cells and passes through the walls of the honeycomb. The particulates pass through the honeycomb cells and flow out of the filter, but at that time, the particulates are filtered out and removed by the walls of the honeycomb cells.
発明が解決しようとする課題
このようなフィルタは排ガスを通過させるために多孔質
のセラミックで構戒され そのため著しく強度の低い材
料が用いられている。Problems to be Solved by the Invention These filters are made of porous ceramic to allow exhaust gas to pass through, and therefore materials with extremely low strength are used.
一Ｘ 排ガスの排気管内の流速は５０ｍ／秒を超える
ものである。また 排ガス中に（上 排気管内壁から剥
離した錆などの硬い固形分（パーティキュレートの一部
）を含んでおり、それが排ガスと一緒にフィルタに衝突
しているのであも かりにフィルタの断面積が排気管の
それの８倍あったとしても排ガス流は急速に広がること
はでき哄 そのた吹 そのままフィルタに衝突していも
排ガス中の固形分は慣性を持つため一層広がりにく賎
こα 高速の排ガス流と、硬い固形分がフィルタの端面
に衝突して強度の弱いフィルタを削り取り、ついにはハ
ニカムセルの端部を塞いているプラグをも損なＩ，ｋ
パーティキュレートのリークなどフィルタ特性の低下
を招いていｔラ
本発明（よ このような従来技術の課題を解決すること
を目的とすも
課題を解決するための手段・．
本発明｛よ フィルタの前方 排ガスの上流側にパンチ
ングメタル等の複数個の穴を有する材料など、排ガスの
流れを妨害し分散させる構造の材料を設けるものであも
作用
排気管内を流れる排ガスは高速であるたべ フィルタ前
方α 排気管との接続部である円錐型のコーンに流入し
ても直ちには広がらす そのままフィルタに衝突する力
交 例えばパンチングメタルを排ガスの流れ中に配して
排ガス流が直接フィルタに衝突しないようにすることに
よって、 フィルタの端面が削り取られてフィルタ機能
が失われることを未然に防ぎ、長寿命を達或することが
出来も
実施例
以下に 本発明の実施例について図面を参照しながら説
明すも
図において、フィルタ１を容器２内に収納した構造を示
も フィルタｌにはアルミノシリケート繊維とセラミッ
ク原料粉末とを湿式抄造して得られるシートを、片方の
端にプラグ原料を詰めなが転 段ボール形状にコルゲー
ト加工したものを、さらに 他端にプラグ原料を詰めな
が転 巻きとって、電気炉中１２５０℃に加熱して焼戊
してセラミック化させて得られるものを用いた このフ
ィルタ１は パーティキュレートを含む排ガスが流入す
る入口セル３−ａ、これに隣接する浄化された排ガスが
流出する出口セル３−ｂを有しており、入口セル３−ａ
１ 出ロセル３ − ｂ ！；Ｌ それぞれ出口仏
入口側でプラグ４−ａ，ｂで封止されていも パーティ
キュレートは入口セル３−ａの壁で濾過補集されも ガ
ラス繊維クロスで覆った断熱材６ （マイクロサーム；
日本アエロジル社製）の人口端部をさらにシリカクロ
ス７で覆ってフィルタ１の外周壁５に巻き、熱膨張性断
熱材８（インクラム マット．３Ｍ社製）を巻いて圧縮
しながら容器２に挿入すも 熱膨張性断熱材８の両端面
は容器２内に設けたフランジ９、 ＩＯで押さえられて
いる。1X The flow velocity of exhaust gas in the exhaust pipe exceeds 50 m/sec. In addition, the exhaust gas contains hard solids (particulates) such as rust that has peeled off from the inner wall of the exhaust pipe, and this collides with the filter together with the exhaust gas, which greatly increases the cross-sectional area of the filter. Even if the exhaust gas flow is 8 times that of the exhaust pipe, the exhaust gas flow will not be able to spread rapidly. Even if it collides with the filter as it is, the solid content in the exhaust gas will have inertia, so it will not spread even more. The exhaust gas flow and the hard solids collide with the end face of the filter, scraping away the weak filter, and eventually damaging the plug blocking the end of the honeycomb cell.
The purpose of the present invention is to solve the problems of the prior art, which causes deterioration of filter characteristics such as particulate leakage. A material with a structure that obstructs and disperses the flow of exhaust gas, such as a material with multiple holes such as punched metal, is installed on the upstream side of the exhaust gas.The exhaust gas flowing through the exhaust pipe is high-speed. Even if it flows into the conical cone that connects to the pipe, it immediately spreads out. For example, a punching metal is placed in the exhaust gas flow to prevent the exhaust gas flow from directly colliding with the filter. By doing so, it is possible to prevent the end face of the filter from being scraped off and the filter function is lost, and to achieve a long service life. Figure 1 shows a structure in which a filter 1 is housed in a container 2.The filter 1 is made of a sheet obtained by wet-forming aluminosilicate fibers and ceramic raw material powder, and one end is filled with a plug raw material. This filter 1 is made by corrugating the material, filling the other end with a plug material, rolling it up, heating it in an electric furnace at 1250°C and burning it to form a ceramic. The inlet cell 3-a has an inlet cell 3-a into which exhaust gas containing curate flows in, and an adjacent outlet cell 3-b into which purified exhaust gas flows out.
1 Out Rocell 3-b! ;L Each exit Buddha
Even if the inlet side is sealed with plugs 4-a and 4-b, particulates are filtered and collected by the wall of the inlet cell 3-a.
The artificial end of the silica cloth 7 (manufactured by Nippon Aerosil Co., Ltd.) is further covered with silica cloth 7 and wrapped around the outer peripheral wall 5 of the filter 1, and a thermally expandable heat insulating material 8 (Incrum Mat, manufactured by 3M Company) is wrapped and compressed while being inserted into the container 2. Both end surfaces of the thermally expandable heat insulating material 8 are held down by flanges 9 and IO provided inside the container 2.
容器２には排気流入管１１気 排気流出管ｌ２がそれ
ぞれ接続された入口コーンｌ３、出口コーン１４がそれ
ぞれ入口仇 出口側に溶接されていもフィルタｌの前方
（排ガス上流側）入口コーン１３内に 排気流入管１１
で導かれる排ガス流を分散させるためのパンチングメタ
ル製のデイフユーザｌ５を設けてある。The container 2 has an inlet cone l3 and an outlet cone 14 to which an exhaust inlet pipe 11 and an exhaust outlet pipe l2 are connected, respectively. Exhaust inflow pipe 11
A diffuser 15 made of punched metal is provided to disperse the exhaust gas flow guided by the exhaust gas flow.
この様に ディフューザ１５を設けることで、排気流入
管１１を高速で流れてきた排ガスはディフューザ１５に
よって撹乱され低い流速となってフィルタｌに達すも
排ガ入 パーティキュレートはパンチングメタルに衝突
して速度を落とす。By providing the diffuser 15 in this way, the exhaust gas flowing through the exhaust inlet pipe 11 at high speed is disturbed by the diffuser 15 and reaches the filter l at a low flow velocity.
Exhaust gas enters Particulates collide with the punching metal and slow down.
一大 パンチングメタルの穴を通過した排ガスやパーテ
ィキュレートはパンチングメタルの後方に発生する渦に
よって失速するのであん このように 排ガス パーテ
ィキュレートは低い流速となってフィルタに到達するの
弘 排ガスやパーティキュレートの衝突によってフィル
タ端面が削られることがなくなり、長期間安全に使用す
ることが出来も 本実施例ではディフューザにパンチン
グメタルを一段で用いたが複数段で、穴の位置をずらし
て用いるとさらに効果的であも 同様の効果を持つ金諷
金属坂 セラミック板や戒型体などを用いることも可
能であも
発明の効果
本発明（よ 排気流入管からの高速度の排ガスパーティ
キュレートが直接フィルタに衝突し フィルタを削り取
ってフィルタ機能を損なっていた点を改善したものであ
る。即水 上記のようにフィルタの前方にパンチングメ
タルなどのディフューザを設けることによって高速度の
排ガ入 パーティキュレートを減速し フィルタの損傷
を防止しｆ， これによって排ガスフィルタは長期間
安定し 安全に機能することが出来もThis is because the exhaust gas and particulates that have passed through the holes in the punching metal are stalled by the vortices generated behind the punching metal.In this way, the exhaust gases and particulates reach the filter at a low flow velocity. The end face of the filter will not be scraped due to collisions, and it can be used safely for a long period of time.In this example, a single stage of punching metal was used for the diffuser, but it would be even more effective to use multiple stages, with the holes shifted in position. However, it is also possible to use a metal plate or a ceramic plate that has similar effects.The effect of the present invention is that the high-velocity exhaust gas particulates from the exhaust inflow pipe collide directly with the filter. This is an improvement over the problem where the filter function was impaired by scraping the filter.Instant Water As mentioned above, by installing a diffuser such as a punching metal in front of the filter, the high-speed exhaust gas entering the filter can be slowed down. This prevents damage to the exhaust gas filter, allowing it to function stably and safely over a long period of time.
図は 本発明の一実施例のフィルタの構戒を示す縦断面
図であもThe figure is a vertical sectional view showing the structure of a filter according to an embodiment of the present invention.
Claims (2)
タにおいて、前記排ガス流が直接フィルタ入口に衝突す
ることを妨げるディフューザが一段、若しくは複数段、
フィルタの排ガス上流側に設けられたことを特徴とする
排ガスフィルタ。(1) In a filter for removing particulates in exhaust gas, there is one stage or multiple stages of diffusers that prevent the exhaust gas flow from directly colliding with the filter inlet;
An exhaust gas filter characterized in that it is provided on the exhaust gas upstream side of the filter.
ミック等の板、もしくは金網等の材料で構成されたこと
を特徴とする請求項１記載の排ガスフィルタ。(2) The exhaust gas filter according to claim 1, wherein the diffuser is made of a material such as a metal or ceramic plate having a plurality of holes, or a wire mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15535389A JPH0729015B2 (en) | 1989-06-16 | 1989-06-16 | Exhaust gas filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15535389A JPH0729015B2 (en) | 1989-06-16 | 1989-06-16 | Exhaust gas filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0321313A true JPH0321313A (en) | 1991-01-30 |
| JPH0729015B2 JPH0729015B2 (en) | 1995-04-05 |
Family
ID=15604047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15535389A Expired - Fee Related JPH0729015B2 (en) | 1989-06-16 | 1989-06-16 | Exhaust gas filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0729015B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2386330A (en) * | 2002-02-27 | 2003-09-17 | Fleetguard Inc | Exhaust after-treatment device |
| US6892854B2 (en) | 1992-06-02 | 2005-05-17 | Donaldson Company, Inc. | Muffler with catalytic converter arrangement; and method |
| CN100402806C (en) * | 2005-11-23 | 2008-07-16 | 中国科学院金属研究所 | Wall-flow type filtering-regeneration device for particulates in exhaust gas from diesel vehicle |
| CN109550326A (en) * | 2019-01-11 | 2019-04-02 | 唐山市神州机械有限公司 | A kind of sundry filter applied to coal dry-dressing machine |
| US11612470B2 (en) | 2008-01-31 | 2023-03-28 | Zoetis Services Llc | Swine vaccination system |
-
1989
- 1989-06-16 JP JP15535389A patent/JPH0729015B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6892854B2 (en) | 1992-06-02 | 2005-05-17 | Donaldson Company, Inc. | Muffler with catalytic converter arrangement; and method |
| GB2386330A (en) * | 2002-02-27 | 2003-09-17 | Fleetguard Inc | Exhaust after-treatment device |
| US6712869B2 (en) | 2002-02-27 | 2004-03-30 | Fleetguard, Inc. | Exhaust aftertreatment device with flow diffuser |
| CN100402806C (en) * | 2005-11-23 | 2008-07-16 | 中国科学院金属研究所 | Wall-flow type filtering-regeneration device for particulates in exhaust gas from diesel vehicle |
| US11612470B2 (en) | 2008-01-31 | 2023-03-28 | Zoetis Services Llc | Swine vaccination system |
| CN109550326A (en) * | 2019-01-11 | 2019-04-02 | 唐山市神州机械有限公司 | A kind of sundry filter applied to coal dry-dressing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0729015B2 (en) | 1995-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3925154B2 (en) | Exhaust gas purification filter | |
| KR100819396B1 (en) | Method for removing soot particles from an exhaust gas and corresponding collecting element | |
| US7618596B2 (en) | Honeycomb filter and exhaust gas purification system | |
| JP3012167B2 (en) | Exhaust gas purification filter and exhaust gas purification device using the same | |
| US20020189217A1 (en) | Exhaust gas purifying filter | |
| JP2004211692A (en) | Open end diesel particulate trap | |
| JPS62225221A (en) | Particulates trap | |
| JPS61138812A (en) | Exhaust gas filter for diesel engine | |
| JP3130587B2 (en) | Honeycomb filter of exhaust gas purification device | |
| JPH0321313A (en) | Exhaust gas filter | |
| JPS58150015A (en) | Exhaust purifying unit in diesel engine | |
| US5687656A (en) | Denitration apparatus for a caol-fired boiler | |
| JP2001289029A (en) | Method and system for exhaust emission control | |
| JPH0472413A (en) | Backwash type particulate filter | |
| JPH04255513A (en) | Exhaust filter for internal combustion engine | |
| US3796024A (en) | Filter assembly | |
| CA2157876A1 (en) | System for filtering residual contaminant particles for smoke and gas through atomized ultrafreezing | |
| JP2567542B2 (en) | Honeycomb filter | |
| JPH03294614A (en) | Exhaust emission purifier | |
| JP2579574Y2 (en) | Exhaust gas purification device | |
| JPS637817A (en) | Exhaust gas filter | |
| JPS61205315A (en) | Exhaust gas filter | |
| CA2521780A1 (en) | Filter block for filtering particles contained in the exhaust gas of a combustion engine | |
| JPH08226317A (en) | Exhaust purifier for engine | |
| CN2751865Y (en) | Filtering cartridge for smoke toxin purifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080405 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090405 Year of fee payment: 14 |
|
| LAPS | Cancellation because of no payment of annual fees |