JP2617597B2 - Exhaust gas purification system for engines - Google Patents
Exhaust gas purification system for enginesInfo
- Publication number
- JP2617597B2 JP2617597B2 JP721990A JP721990A JP2617597B2 JP 2617597 B2 JP2617597 B2 JP 2617597B2 JP 721990 A JP721990 A JP 721990A JP 721990 A JP721990 A JP 721990A JP 2617597 B2 JP2617597 B2 JP 2617597B2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- engine
- purification system
- turbocharger
- water tank
- 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.)
- Expired - Fee Related
Links
Landscapes
- Exhaust Gas After Treatment (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、エンジン用排ガス浄化装置に関する。The present invention relates to an exhaust gas purifying apparatus for an engine.
一般に、ガソリンエンジン、ディーゼルエンジン等か
らの排気ガス中には一酸化炭素（CO）、硫黄酸化物（SO
x）、窒素酸化物（NOx）、粒子状物質（スス、ディーゼ
ル粒子など）等が含まれている。一酸化炭素、窒素酸化
物については、従来触媒装置などによる低減対策が取ら
れている。Generally, carbon monoxide (CO), sulfur oxide (SO
x ), nitrogen oxides (NO x ), particulate matter (soot, diesel particles, etc.) and the like. For carbon monoxide and nitrogen oxides, reduction measures have conventionally been taken using a catalyst device or the like.
ところが、その他の排出物、特に粒子状物質について
は何らの対策もとられていない。However, no measures have been taken for other emissions, especially particulate matter.
本発明の目的は前記従来装置の問題点を解消し、排気
ガス中の粒子状物質や一酸化炭素、硫黄酸化物、窒素酸
化物等の大気汚染の原因となる有害物質を除去し、クリ
ーンな排気が得られるエンジン用排気ガス浄化システム
を提供するにある。An object of the present invention is to solve the problems of the conventional apparatus, remove harmful substances that cause air pollution such as particulate matter, carbon monoxide, sulfur oxides, and nitrogen oxides in exhaust gas, and clean the exhaust gas. An object of the present invention is to provide an exhaust gas purification system for an engine that can obtain exhaust gas.
本発明のエンジン用排気ガス浄化システムは、エンジ
ンの排気管内に配設された排気ガスの運動エネルギ回収
用のターボチャージャと、該ターボチャージャ９の上流
に挿入される加湿装置８と、前記ターボチャージャの下
流に設けられた液滴分離器10と、該液滴分離器内におい
てコンデンスした溶液を蓄える凝縮水タンク14と、該凝
縮水タンクの溶液内の有害物質を除去する装置15と、前
記液滴分離器と凝縮水タンクと有害除去装置と加湿装置
をつなぐ水管とを有してなることを特徴としている。An exhaust gas purification system for an engine according to the present invention includes a turbocharger disposed in an exhaust pipe of an engine for recovering kinetic energy of exhaust gas, a humidifying device inserted upstream of the turbocharger, A condensed water tank 14 for storing a solution condensed in the liquid droplet separator, a device 15 for removing harmful substances in the solution in the condensed water tank, It is characterized by having a water separator, a condensed water tank, a harm removal device and a water pipe connecting the humidifier.
エンジンからの排気ガスは水蒸気が加湿され、ターボ
チャージャの膨張タービンに流入する。該タービン内で
膨張の際水蒸気の凝縮が起こり、粒子状物質、窒素酸化
物、一酸化炭素、硫黄酸化物などの有害物質が液滴内へ
取り込まれる。液滴は数μｍ程度まで成長するため、こ
れを集塵装置で排ガスより分離することにより排気ガス
の浄化が達成される。Exhaust gas from the engine is humidified with steam and flows into an expansion turbine of a turbocharger. During expansion in the turbine, condensation of water vapor occurs, and harmful substances such as particulate matter, nitrogen oxides, carbon monoxide, and sulfur oxides are taken into the droplets. Since the droplet grows to about several μm, the exhaust gas is purified by separating the droplet from the exhaust gas by a dust collector.
以下第１〜２図を参照し本発明の一実施例について説
明する。An embodiment of the present invention will be described below with reference to FIGS.
第１図においてエンジン６の排気口５からの有害物質
を含む排気ガス７は加湿装置８からの水蒸気が添加さ
れ、飽和状態に近ずき、過給機の膨張タービン９へ流入
する。該膨張タービン内では排気ガスは急激に断熱膨張
するため、水蒸気の凝縮が起こる。このとき排気ガス中
の粒子状物質、窒素酸化物、一酸化炭素、硫黄酸化物等
の有害物質が凝縮核として作用し、発生する液滴中に取
り込まれる。膨張タービン出口からの排気ガスは液滴を
含んだ気液二相状態で流出し、液滴分離器10（遠心分離
器、電気集塵機で構成される）を通過時に排ガス中から
液滴として分離される。液滴が除去された排ガスは消音
器11を通り、浄化排ガスとして大気中に放出される。一
方液滴分離器10で排気ガス中より除去された液滴すなわ
ち凝縮水13は凝縮水タンク14に溜められる。該凝縮水タ
ンク内の水は循環ポンプ16と有害物質除去装置（高性能
水濾過フィルタ）15を通り加湿装置８へ送られ加湿用の
水として再利用される。なお17は燃料供給装置である。In FIG. 1, the exhaust gas 7 containing harmful substances from the exhaust port 5 of the engine 6 is added with steam from the humidifier 8 and approaches a saturated state, and flows into the expansion turbine 9 of the supercharger. In the expansion turbine, the exhaust gas rapidly adiabatically expands, so that steam condenses. At this time, harmful substances such as particulate matter, nitrogen oxides, carbon monoxide, and sulfur oxides in the exhaust gas act as condensation nuclei and are taken into the generated droplets. Exhaust gas from the outlet of the expansion turbine flows out in a gas-liquid two-phase state including droplets, and is separated as droplets from the exhaust gas when passing through a droplet separator 10 (comprising a centrifugal separator and an electrostatic precipitator). You. The exhaust gas from which the droplets have been removed passes through the silencer 11 and is released into the atmosphere as purified exhaust gas. On the other hand, droplets removed from the exhaust gas by the droplet separator 10, that is, the condensed water 13, are stored in the condensed water tank 14. The water in the condensed water tank is sent to the humidifier 8 through the circulation pump 16 and the harmful substance removing device (high-performance water filter) 15, and is reused as humidifying water. Reference numeral 17 denotes a fuel supply device.
第２図は排ガス中の添加された水蒸気の過給機膨張タ
ービン内での状態変化の模式図を示す。第２図において
Ａは水蒸気が添加され飽和に近い排ガスの状態、Ｂは膨
張タービン９内での凝縮開始の状態、Ｃは膨張タービン
の出口での状態を示す。膨張タービン９内では水蒸気は
ABに沿って急激に膨張し過飽和状態となる。過飽和度が
Ｂの状態に達すると、急速に水蒸気の滴状凝縮が起こり
BC間で液滴が発生する。液滴を含む排気ガスは状態Ｃで
液滴分離器10へ流入する。FIG. 2 is a schematic view showing a state change of added steam in the exhaust gas in the turbocharger expansion turbine. In FIG. 2, A shows a state of exhaust gas to which water vapor is added and is close to saturation, B shows a state of condensation start in the expansion turbine 9, and C shows a state of an outlet of the expansion turbine. The steam in the expansion turbine 9
It expands rapidly along AB and becomes supersaturated. When the supersaturation reaches the state of B, the droplet condensation of water vapor occurs rapidly.
Droplets are generated between BC. The exhaust gas containing the droplets flows into the droplet separator 10 in the state C.
なおエンジン６から排出される排気ガス７の運動エネ
ルギは従来の過給機付エンジンの場合と同様に膨張ター
ビン９に接続されたコンプレッサ２によって回収され、
外気１は加圧されて給気口４よりエンジンシリンダに供
給される。The kinetic energy of the exhaust gas 7 discharged from the engine 6 is recovered by the compressor 2 connected to the expansion turbine 9 in the same manner as in the case of the conventional turbocharged engine.
The outside air 1 is pressurized and supplied to the engine cylinder from an air supply port 4.
本発明は前記のとおり構成したので、エンジン（ガソ
リンエンジン、ディーゼルエンジン）から排出される排
気ガス中の粒子状物質の除去が可能となると共に、窒素
酸化物（NOx）、硫黄酸化物（SOx）、一酸化炭素（CO）
等のガス状物質も同時に除去出来るようになり排気ガス
が清浄化され、エンジンからの排出される有害物質によ
る大気汚染が防止できる。Since the present invention is configured as described above, it is possible to remove particulate matter in the exhaust gas discharged from the engine (gasoline engine, diesel engine), and to remove nitrogen oxide (NO x ) and sulfur oxide (SO x ), carbon monoxide (CO)
And other gaseous substances can be removed at the same time, the exhaust gas is purified, and air pollution by harmful substances discharged from the engine can be prevented.
第１図は本発明に係るエンジン用排気ガス浄化システム
のブロック図、第２図は排ガス中に添加される水蒸気の
過給機膨張タービン内での状態変化の模式図である。 ２…コンプレッサ、５…排気口、６…エンジン、７…排
気ガス、８…加湿装置、９…タービン、10…液滴分離
器、11…消音機、14…凝縮水タンク、15…有害物質除去
装置、16…循環ポンプ。FIG. 1 is a block diagram of an exhaust gas purification system for an engine according to the present invention, and FIG. 2 is a schematic diagram of a state change of steam added to exhaust gas in a turbocharger expansion turbine. 2: compressor, 5: exhaust port, 6: engine, 7: exhaust gas, 8: humidifier, 9: turbine, 10: droplet separator, 11: silencer, 14: condensed water tank, 15: removal of harmful substances Equipment, 16 ... circulation pump.
Claims (1)
の運動エネルギ回収用のターボチャージャと、該ターボ
チャージャ（９）の上流に挿入される加湿装置（８）
と、前記ターボチャージャの下流に設けられた液滴分離
器（10）と、該液滴分離器内においてコンデンスした溶
液を蓄える凝縮水タンク（14）と、該凝縮水タンクの溶
液内の有害物質を除去する装置（15）と、前記液滴分離
器と凝縮水タンクと有害除去装置と加湿装置をつなぐ水
管とを有してなるエンジン用排気ガス浄化システム。1. A turbocharger disposed in an exhaust pipe of an engine for recovering kinetic energy of exhaust gas, and a humidifier (8) inserted upstream of the turbocharger (9).
A droplet separator (10) provided downstream of the turbocharger, a condensed water tank (14) for storing a solution condensed in the droplet separator, and harmful substances in the solution in the condensed water tank. An exhaust gas purification system for an engine, comprising: a device (15) for removing water; a water pipe connecting the droplet separator, a condensed water tank, a harmful removal device, and a humidifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP721990A JP2617597B2 (en) | 1990-01-18 | 1990-01-18 | Exhaust gas purification system for engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP721990A JP2617597B2 (en) | 1990-01-18 | 1990-01-18 | Exhaust gas purification system for engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03213615A JPH03213615A (en) | 1991-09-19 |
| JP2617597B2 true JP2617597B2 (en) | 1997-06-04 |
Family
ID=11659889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP721990A Expired - Fee Related JP2617597B2 (en) | 1990-01-18 | 1990-01-18 | Exhaust gas purification system for engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2617597B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365265C (en) * | 2002-05-21 | 2008-01-30 | 曼B与W狄赛尔公司 | Large internal combustion engine with supercharger |
| CN112160819A (en) * | 2020-09-18 | 2021-01-01 | 浙江吉利控股集团有限公司 | Exhaust pipe descending system and method |
-
1990
- 1990-01-18 JP JP721990A patent/JP2617597B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03213615A (en) | 1991-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6185934B1 (en) | Device and method for filtering internal combustion engine exhaust gases and vehicle equipped with such a device | |
| CA2183537A1 (en) | A Flow-Through Particulate Incineration System Coupled to an Aerodynamically Regenerated Particulate Trap for Diesel Engine Exhaust Gas | |
| KR960702886A (en) | A LARGE SUPERCHARGED DIESEL ENGINE | |
| WO2012153705A1 (en) | Wet exhaust gas purification device | |
| JP2012140928A5 (en) | ||
| PL369401A1 (en) | A device for exhaust gas purification | |
| US7464540B2 (en) | Ammonia producing engine utilizing oxygen separation | |
| JPH1162553A (en) | Exhaust emission control device of internal combustion engine | |
| KR102221645B1 (en) | A system for exhaust gas recirculation, engine, use of a system for exhaust gas recirculation, method for exhaust gas recirculation and diesel exhaust composition | |
| JP2617597B2 (en) | Exhaust gas purification system for engines | |
| WO1999056854A1 (en) | A method and a device for separating solid particles from a flow of hot gas | |
| JP6263928B2 (en) | Condensate separator | |
| JP5889229B2 (en) | Recirculation exhaust gas purification device and recirculation exhaust gas purification method | |
| JPH1162554A (en) | Exhaust emission control device of internal combustion engine | |
| JP2023519743A (en) | Systems for exhaust gas cleaning of endothermic engines | |
| JPH04300614A (en) | Method and device for cooling and purifying exhaust gas | |
| JP2003239726A (en) | Exhaust emission control device | |
| JPS6121534Y2 (en) | ||
| JPS5979022A (en) | Exhaust-gas purifying apparatus for diesel engine | |
| JPS6229606B2 (en) | ||
| JPS59119009A (en) | Exhaust gas control system of diesel engine | |
| JP3084809U (en) | Automotive exhaust gas purification equipment | |
| KR100187139B1 (en) | Air purifying device | |
| JPS6097B2 (en) | Combustion exhaust gas purification device | |
| RU2122137C1 (en) | Method of delivering fuel-air mixture into cylinders of internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |